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22553400212 = 2274126177507
BaseRepresentation
bin10101000000010010…
…011001001110010100
32011012210012102211222
4111000102121032110
5332142132301322
614205541345512
71425615511250
oct250022311624
964183172758
1022553400212
119623896432
124455108298
1321856b3035
14113d477260
158beee3e42
hex540499394

22553400212 has 48 divisors (see below), whose sum is σ = 46230780288. Its totient is φ = 9425134080.

The previous prime is 22553400211. The next prime is 22553400227. The reversal of 22553400212 is 21200435522.

It is a super-2 number, since 2×225534002122 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22553400211) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3000563 + ... + 3008069.

It is an arithmetic number, because the mean of its divisors is an integer number (963141256).

Almost surely, 222553400212 is an apocalyptic number.

It is an amenable number.

22553400212 is an abundant number, since it is smaller than the sum of its proper divisors (23677380076).

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

22553400212 is a wasteful number, since it uses less digits than its factorization.

22553400212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10176 (or 10174 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 22553400212 its reverse (21200435522), we get a palindrome (43753835734).

The spelling of 22553400212 in words is "twenty-two billion, five hundred fifty-three million, four hundred thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 41 82 164 287 574 1148 2617 5234 7507 10468 15014 18319 30028 36638 52549 73276 105098 107297 210196 214594 307787 429188 615574 751079 1231148 1502158 2154509 3004316 4309018 8618036 19645819 39291638 78583276 137520733 275041466 550082932 805478579 1610957158 3221914316 5638350053 11276700106 22553400212