222020556 has 24 divisors (see below), whose sum is σ = 521833200. Its totient is φ = 73466112.

The previous prime is 222020537. The next prime is 222020563. The reversal of 222020556 is 655020222.

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, 65881 + ... + 69168.

It is an arithmetic number, because the mean of its divisors is an integer number (21743050).

Almost surely, 2^222020556 is an apocalyptic number.

It is an amenable number.

222020556 is an abundant number, since it is smaller than the sum of its proper divisors (299812644).

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

222020556 is a wasteful number, since it uses less digits than its factorization.

222020556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135193 (or 135191 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 222020556 is about 14900.3542239774. The cubic root of 222020556 is about 605.5235829011.

Adding to 222020556 its reverse (655020222), we get a palindrome (877040778).

The spelling of 222020556 in words is "two hundred twenty-two million, twenty thousand, five hundred fifty-six".