222521034 has 16 divisors (see below), whose sum is σ = 457070688. Its totient is φ = 72168912.

The previous prime is 222521011. The next prime is 222521111. The reversal of 222521034 is 430125222.

222521034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×222521034² = 99031221144858312, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222521034.

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, 500952 + ... + 501395.

It is an arithmetic number, because the mean of its divisors is an integer number (28566918).

Almost surely, 2^222521034 is an apocalyptic number.

222521034 is an abundant number, since it is smaller than the sum of its proper divisors (234549654).

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

222521034 is a wasteful number, since it uses less digits than its factorization.

222521034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002389.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 222521034 is about 14917.1389347958. The cubic root of 222521034 is about 605.9782311996.

Adding to 222521034 its reverse (430125222), we get a palindrome (652646256).

The spelling of 222521034 in words is "two hundred twenty-two million, five hundred twenty-one thousand, thirty-four".