122121111102 has 16 divisors (see below), whose sum is σ = 244245738000. Its totient is φ = 40706451072.

The previous prime is 122121111097. The next prime is 122121111131. The reversal of 122121111102 is 201111121221.

It is a happy number.

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, 589524 + ... + 769272.

It is an arithmetic number, because the mean of its divisors is an integer number (15265358625).

Almost surely, 2^122121111102 is an apocalyptic number.

122121111102 is an abundant number, since it is smaller than the sum of its proper divisors (122124626898).

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

122121111102 is a wasteful number, since it uses less digits than its factorization.

122121111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292987.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 122121111102 its reverse (201111121221), we get a palindrome (323232232323).

The spelling of 122121111102 in words is "one hundred twenty-two billion, one hundred twenty-one million, one hundred eleven thousand, one hundred two".