121122111102 has 16 divisors (see below), whose sum is σ = 242257026432. Its totient is φ = 40371903000.

The previous prime is 121122111079. The next prime is 121122111157. The reversal of 121122111102 is 201111221121.

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, 408274 + ... + 639477.

It is an arithmetic number, because the mean of its divisors is an integer number (15141064152).

Almost surely, 2^121122111102 is an apocalyptic number.

121122111102 is an abundant number, since it is smaller than the sum of its proper divisors (121134915330).

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

121122111102 is a wasteful number, since it uses less digits than its factorization.

121122111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067023.

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

Adding to 121122111102 its reverse (201111221121), we get a palindrome (322233332223).

The spelling of 121122111102 in words is "one hundred twenty-one billion, one hundred twenty-two million, one hundred eleven thousand, one hundred two".