21222042415032 has 32 divisors (see below), whose sum is σ = 53580404123280. Its totient is φ = 7003974393600.

The previous prime is 21222042415001. The next prime is 21222042415037. The reversal of 21222042415032 is 23051424022212.

It is a super-2 number, since 2×21222042415032² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222042415037) 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, 4377481573 + ... + 4377486420.

Almost surely, 2^{21222042415032} is an apocalyptic number.

It is an amenable number.

21222042415032 is an abundant number, since it is smaller than the sum of its proper divisors (32358361708248).

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

21222042415032 is a wasteful number, since it uses less digits than its factorization.

21222042415032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8754968103 (or 8754968099 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 21222042415032 its reverse (23051424022212), we get a palindrome (44273466437244).

The spelling of 21222042415032 in words is "twenty-one trillion, two hundred twenty-two billion, forty-two million, four hundred fifteen thousand, thirty-two".