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20022130212 = 22371099072411
BaseRepresentation
bin10010101001011010…
…010111011000100100
31220200101011121012020
4102221122113120210
5312001131131322
613110435423140
71306111204320
oct225132273044
956611147166
1020022130212
118544a74857
123a69454ab0
131b71155836
14d7d206980
157c2b8d05c
hex4a9697624

20022130212 has 96 divisors (see below), whose sum is σ = 53963965440. Its totient is φ = 5659528320.

The previous prime is 20022130211. The next prime is 20022130217. The reversal of 20022130212 is 21203122002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20022130191 and 20022130200.

It is not an unprimeable number, because it can be changed into a prime (20022130211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8303287 + ... + 8305697.

It is an arithmetic number, because the mean of its divisors is an integer number (562124640).

Almost surely, 220022130212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20022130212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26981982720).

20022130212 is an abundant number, since it is smaller than the sum of its proper divisors (33941835228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20022130212 is a wasteful number, since it uses less digits than its factorization.

20022130212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3441 (or 3439 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20022130212 its reverse (21203122002), we get a palindrome (41225252214).

The spelling of 20022130212 in words is "twenty billion, twenty-two million, one hundred thirty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 109 218 327 436 654 763 907 1308 1526 1814 2289 2411 2721 3052 3628 4578 4822 5442 6349 7233 9156 9644 10884 12698 14466 16877 19047 25396 28932 33754 38094 50631 67508 76188 98863 101262 197726 202524 262799 296589 395452 525598 593178 692041 788397 1051196 1186356 1384082 1576794 1839593 2076123 2186777 2768164 3153588 3679186 4152246 4373554 5518779 6560331 7358372 8304492 8747108 11037558 13120662 15307439 22075116 26241324 30614878 45922317 61229756 91844634 183689268 238358693 476717386 715076079 953434772 1430152158 1668510851 2860304316 3337021702 5005532553 6674043404 10011065106 20022130212