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22020210212 = 2271113231571523
BaseRepresentation
bin10100100000100000…
…011011111000100100
32002211121220120200012
4110200200123320210
5330044133211322
614041013305352
71406452461410
oct244040337044
962747816605
1022020210212
11937a91a940
124326635258
1320cc0a9cb0
1410cc721d40
1588d2c1ae2
hex52081be24

22020210212 has 192 divisors, whose sum is σ = 54368907264. Its totient is φ = 7521845760.

The previous prime is 22020210127. The next prime is 22020210239. The reversal of 22020210212 is 21201202022.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14457683 + ... + 14459205.

It is an arithmetic number, because the mean of its divisors is an integer number (283171392).

Almost surely, 222020210212 is an apocalyptic number.

22020210212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22020210212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27184453632).

22020210212 is an abundant number, since it is smaller than the sum of its proper divisors (32348697052).

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

22020210212 is a wasteful number, since it uses less digits than its factorization.

22020210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738 (or 1736 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22020210212 its reverse (21201202022), we get a palindrome (43221412234).

It can be divided in two parts, 22020 and 210212, that added together give a palindrome (232232).

The spelling of 22020210212 in words is "twenty-two billion, twenty million, two hundred ten thousand, two hundred twelve".