222221122211110 has 32 divisors (see below), whose sum is σ = 442874334212352. Its totient is φ = 79601596013280.

The previous prime is 222221122211093. The next prime is 222221122211167. The reversal of 222221122211110 is 11112221122222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

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, 15076052482 + ... + 15076067221.

It is an arithmetic number, because the mean of its divisors is an integer number (13839822944136).

Almost surely, 2^{222221122211110} is an apocalyptic number.

222221122211110 is a deficient number, since it is larger than the sum of its proper divisors (220653212001242).

222221122211110 is a wasteful number, since it uses less digits than its factorization.

222221122211110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30152119788.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 222221122211110 its reverse (11112221122222), we get a palindrome (233333343333332).

The spelling of 222221122211110 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, one hundred twenty-two million, two hundred eleven thousand, one hundred ten".