22402256212 has 24 divisors (see below), whose sum is σ = 44808061760. Its totient is φ = 9600206400.

The previous prime is 22402256179. The next prime is 22402256287. The reversal of 22402256212 is 21265220422.

It is a super-2 number, since 2×22402256212² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464239 + ... + 510217.

Almost surely, 2^22402256212 is an apocalyptic number.

It is an amenable number.

22402256212 is an abundant number, since it is smaller than the sum of its proper divisors (22405805548).

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

22402256212 is a wasteful number, since it uses less digits than its factorization.

22402256212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63391 (or 63389 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 22402256212 its reverse (21265220422), we get a palindrome (43667476634).

The spelling of 22402256212 in words is "twenty-two billion, four hundred two million, two hundred fifty-six thousand, two hundred twelve".