221223032231022 has 80 divisors (see below), whose sum is σ = 512207140528512. Its totient is φ = 71290689848640.

The previous prime is 221223032230999. The next prime is 221223032231023. The reversal of 221223032231022 is 220132230322122.

221223032231022 is a `hidden beast` number, since 2 + 2 + 1 + 2 + 2 + 3 + 0 + 322 + 310 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221223032231023) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17084733 + ... + 27098600.

Almost surely, 2^{221223032231022} is an apocalyptic number.

221223032231022 is an abundant number, since it is smaller than the sum of its proper divisors (290984108297490).

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

221223032231022 is a wasteful number, since it uses less digits than its factorization.

221223032231022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44184375 (or 44184366 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 221223032231022 its reverse (220132230322122), we get a palindrome (441355262553144).

The spelling of 221223032231022 in words is "two hundred twenty-one trillion, two hundred twenty-three billion, thirty-two million, two hundred thirty-one thousand, twenty-two".