222021111121110 has 48 divisors (see below), whose sum is σ = 659719873047456. Its totient is φ = 50747682541824.

The previous prime is 222021111121109. The next prime is 222021111121157. The reversal of 222021111121110 is 11121111120222.

It is a happy number.

222021111121110 is a `hidden beast` number, since 2 + 220 + 211 + 1 + 1 + 121 + 110 = 666.

222021111121110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176207230419 + ... + 176207231678.

It is an arithmetic number, because the mean of its divisors is an integer number (13744164021822).

Almost surely, 2^{222021111121110} is an apocalyptic number.

222021111121110 is an abundant number, since it is smaller than the sum of its proper divisors (437698761926346).

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

222021111121110 is a wasteful number, since it uses less digits than its factorization.

222021111121110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352414462117 (or 352414462114 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 222021111121110 its reverse (11121111120222), we get a palindrome (233142222241332).

The spelling of 222021111121110 in words is "two hundred twenty-two trillion, twenty-one billion, one hundred eleven million, one hundred twenty-one thousand, one hundred ten".