121111022102 has 16 divisors (see below), whose sum is σ = 207650620320. Its totient is φ = 51896792448.

The previous prime is 121111021979. The next prime is 121111022113. The reversal of 121111022102 is 201220111121.

It is a super-2 number, since 2×121111022102² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 565577 + ... + 749732.

It is an arithmetic number, because the mean of its divisors is an integer number (12978163770).

Almost surely, 2^121111022102 is an apocalyptic number.

121111022102 is a deficient number, since it is larger than the sum of its proper divisors (86539598218).

121111022102 is a wasteful number, since it uses less digits than its factorization.

121111022102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321895.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121111022102 its reverse (201220111121), we get a palindrome (322331133223).

The spelling of 121111022102 in words is "one hundred twenty-one billion, one hundred eleven million, twenty-two thousand, one hundred two".