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22102100212 = 2259831128349
BaseRepresentation
bin10100100101011000…
…110100100011110100
32010001100000000122011
4110211120310203310
5330231114201322
614053100414004
71411465515643
oct244530644364
963040000564
1022102100212
119412072025
124349b47304
13211304c70a
1410d955b35a
1589559a677
hex5256348f4

22102100212 has 24 divisors (see below), whose sum is σ = 39808188000. Its totient is φ = 10732846176.

The previous prime is 22102100161. The next prime is 22102100213. The reversal of 22102100212 is 21200120122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22102100192 and 22102100201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102100213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544587 + ... + 583762.

It is an arithmetic number, because the mean of its divisors is an integer number (1658674500).

Almost surely, 222102100212 is an apocalyptic number.

It is an amenable number.

22102100212 is a deficient number, since it is larger than the sum of its proper divisors (17706087788).

22102100212 is a wasteful number, since it uses less digits than its factorization.

22102100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128495 (or 1128493 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22102100212 its reverse (21200120122), we get a palindrome (43302220334).

The spelling of 22102100212 in words is "twenty-two billion, one hundred two million, one hundred thousand, two hundred twelve".

Divisors: 1 2 4 59 83 118 166 236 332 4897 9794 19588 1128349 2256698 4513396 66572591 93652967 133145182 187305934 266290364 374611868 5525525053 11051050106 22102100212