212222022111120 has 80 divisors (see below), whose sum is σ = 751872306913920. Its totient is φ = 48507890767872.

The previous prime is 212222022111091. The next prime is 212222022111133. The reversal of 212222022111120 is 21111220222212.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63161314425 + ... + 63161317784.

It is an arithmetic number, because the mean of its divisors is an integer number (9398403836424).

Almost surely, 2^{212222022111120} is an apocalyptic number.

212222022111120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212222022111120 is an abundant number, since it is smaller than the sum of its proper divisors (539650284802800).

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

212222022111120 is a wasteful number, since it uses less digits than its factorization.

212222022111120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126322632232 (or 126322632226 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 212222022111120 its reverse (21111220222212), we get a palindrome (233333242333332).

The spelling of 212222022111120 in words is "two hundred twelve trillion, two hundred twenty-two billion, twenty-two million, one hundred eleven thousand, one hundred twenty".