121111002111102 has 16 divisors (see below), whose sum is σ = 242222306573712. Its totient is φ = 40370283645120.

The previous prime is 121111002111089. The next prime is 121111002111157. The reversal of 121111002111102 is 201111200111121.

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, 7213633 + ... + 17153964.

It is an arithmetic number, because the mean of its divisors is an integer number (15138894160857).

Almost surely, 2^{121111002111102} is an apocalyptic number.

121111002111102 is an abundant number, since it is smaller than the sum of its proper divisors (121111304462610).

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

121111002111102 is a wasteful number, since it uses less digits than its factorization.

121111002111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25195963.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 121111002111102 its reverse (201111200111121), we get a palindrome (322222202222223).

The spelling of 121111002111102 in words is "one hundred twenty-one trillion, one hundred eleven billion, two million, one hundred eleven thousand, one hundred two".