22401335236 has 24 divisors (see below), whose sum is σ = 47160706880. Its totient is φ = 9095278752.

The previous prime is 22401335221. The next prime is 22401335267. The reversal of 22401335236 is 63253310422.

It is a junction number, because it is equal to n+sod(n) for n = 22401335198 and 22401335207.

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, 21053355 + ... + 21054418.

Almost surely, 2^22401335236 is an apocalyptic number.

It is an amenable number.

22401335236 is an abundant number, since it is smaller than the sum of its proper divisors (24759371644).

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

22401335236 is a wasteful number, since it uses less digits than its factorization.

22401335236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42107803 (or 42107801 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 22401335236 its reverse (63253310422), we get a palindrome (85654645658).

The spelling of 22401335236 in words is "twenty-two billion, four hundred one million, three hundred thirty-five thousand, two hundred thirty-six".