122222122121110 has 32 divisors (see below), whose sum is σ = 244528101627552. Its totient is φ = 43605834305280.

The previous prime is 122222122121081. The next prime is 122222122121129. The reversal of 122222122121110 is 11121221222221.

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, 10482165879 + ... + 10482177538.

It is an arithmetic number, because the mean of its divisors is an integer number (7641503175861).

Almost surely, 2^{122222122121110} is an apocalyptic number.

122222122121110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122222122121110 is an abundant number, since it is smaller than the sum of its proper divisors (122305979506442).

122222122121110 is a wasteful number, since it uses less digits than its factorization.

122222122121110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20964343488.

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

Adding to 122222122121110 its reverse (11121221222221), we get a palindrome (133343343343331).

The spelling of 122222122121110 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred ten".