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20222011220 = 22519177729947
BaseRepresentation
bin10010110101010100…
…110110011101010100
31221012022021121101112
4102311110312131110
5312403313324340
613142335514152
71314056154635
oct226524663524
957168247345
1020222011220
118637886374
123b04388958
131ba369a918
14d9b99788c
157d54c2065
hex4b5536754

20222011220 has 48 divisors (see below), whose sum is σ = 44727936960. Its totient is φ = 7658509824.

The previous prime is 20222011169. The next prime is 20222011223. The reversal of 20222011220 is 2211022202.

It is a junction number, because it is equal to n+sod(n) for n = 20222011195 and 20222011204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222011223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 660287 + ... + 690233.

It is an arithmetic number, because the mean of its divisors is an integer number (931832020).

Almost surely, 220222011220 is an apocalyptic number.

20222011220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20222011220 is an abundant number, since it is smaller than the sum of its proper divisors (24505925740).

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

20222011220 is a wasteful number, since it uses less digits than its factorization.

20222011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31752 (or 31750 counting only the distinct ones).

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

Adding to 20222011220 its reverse (2211022202), we get a palindrome (22433033422).

The spelling of 20222011220 in words is "twenty billion, two hundred twenty-two million, eleven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 1777 3554 7108 8885 17770 29947 33763 35540 59894 67526 119788 135052 149735 168815 299470 337630 568993 598940 675260 1137986 2275972 2844965 5689930 11379860 53215819 106431638 212863276 266079095 532158190 1011100561 1064316380 2022201122 4044402244 5055502805 10111005610 20222011220