122222121102 has 16 divisors (see below), whose sum is σ = 271604713680. Its totient is φ = 40740707016.

The previous prime is 122222121097. The next prime is 122222121157. The reversal of 122222121102 is 201121222221.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 1131686253 + ... + 1131686360.

It is an arithmetic number, because the mean of its divisors is an integer number (16975294605).

Almost surely, 2^122222121102 is an apocalyptic number.

122222121102 is an abundant number, since it is smaller than the sum of its proper divisors (149382592578).

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

122222121102 is a wasteful number, since it uses less digits than its factorization.

122222121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2263372624 (or 2263372618 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122222121102 its reverse (201121222221), we get a palindrome (323343343323).

The spelling of 122222121102 in words is "one hundred twenty-two billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred two".