21302333112 has 16 divisors (see below), whose sum is σ = 53255832840. Its totient is φ = 7100777696.

The previous prime is 21302333111. The next prime is 21302333161. The reversal of 21302333112 is 21133320312.

It is a super-2 number, since 2×21302333112² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302333111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443798583 + ... + 443798630.

Almost surely, 2^21302333112 is an apocalyptic number.

It is an amenable number.

21302333112 is an abundant number, since it is smaller than the sum of its proper divisors (31953499728).

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

21302333112 is a wasteful number, since it uses less digits than its factorization.

21302333112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887597222 (or 887597218 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21302333112 its reverse (21133320312), we get a palindrome (42435653424).

The spelling of 21302333112 in words is "twenty-one billion, three hundred two million, three hundred thirty-three thousand, one hundred twelve".