121102022111 has 12 divisors (see below), whose sum is σ = 143183190600. Its totient is φ = 102100062960.

The previous prime is 121102022099. The next prime is 121102022123. The reversal of 121102022111 is 111220201121.

It is an interprime number because it is at equal distance from previous prime (121102022099) and next prime (121102022123).

It is not a de Polignac number, because 121102022111 - 2¹⁴ = 121102005727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121102022161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20254961 + ... + 20260938.

It is an arithmetic number, because the mean of its divisors is an integer number (11931932550).

Almost surely, 2^121102022111 is an apocalyptic number.

121102022111 is a deficient number, since it is larger than the sum of its proper divisors (22081168489).

121102022111 is an equidigital number, since it uses as much as digits as its factorization.

121102022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40515974 (or 40515967 counting only the distinct ones).

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

Adding to 121102022111 its reverse (111220201121), we get a palindrome (232322223232).

The spelling of 121102022111 in words is "one hundred twenty-one billion, one hundred two million, twenty-two thousand, one hundred eleven".