222021012432 has 80 divisors (see below), whose sum is σ = 577460093760. Its totient is φ = 73503446016.

The previous prime is 222021012377. The next prime is 222021012439. The reversal of 222021012432 is 234210120222.

It is a super-2 number, since 2×222021012432² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222021012399 and 222021012408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222021012439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22369423 + ... + 22379345.

It is an arithmetic number, because the mean of its divisors is an integer number (7218251172).

Almost surely, 2^222021012432 is an apocalyptic number.

It is an amenable number.

222021012432 is an abundant number, since it is smaller than the sum of its proper divisors (355439081328).

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

222021012432 is a wasteful number, since it uses less digits than its factorization.

222021012432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13060 (or 13054 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 222021012432 its reverse (234210120222), we get a palindrome (456231132654).

The spelling of 222021012432 in words is "two hundred twenty-two billion, twenty-one million, twelve thousand, four hundred thirty-two".