222012120211100 has 36 divisors (see below), whose sum is σ = 488365839242064. Its totient is φ = 87588343313280.

The previous prime is 222012120211093. The next prime is 222012120211139. The reversal of 222012120211100 is 1112021210222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15206302304 + ... + 15206316903.

It is an arithmetic number, because the mean of its divisors is an integer number (13565717756724).

Almost surely, 2^{222012120211100} is an apocalyptic number.

222012120211100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222012120211100 is an abundant number, since it is smaller than the sum of its proper divisors (266353719030964).

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

222012120211100 is a wasteful number, since it uses less digits than its factorization.

222012120211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30412619294 (or 30412619287 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 222012120211100 its reverse (1112021210222), we get a palindrome (223124141421322).

The spelling of 222012120211100 in words is "two hundred twenty-two trillion, twelve billion, one hundred twenty million, two hundred eleven thousand, one hundred".