121022102210111 has 4 divisors (see below), whose sum is σ = 121032796053912. Its totient is φ = 121011408366312.

The previous prime is 121022102210099. The next prime is 121022102210123. The reversal of 121022102210111 is 111012201220121.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (121022102210099) and next prime (121022102210123).

It is a cyclic number.

It is not a de Polignac number, because 121022102210111 - 2⁴² = 116624055699007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121022102210111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022102210311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5346904925 + ... + 5346927558.

It is an arithmetic number, because the mean of its divisors is an integer number (30258199013478).

Almost surely, 2^{121022102210111} is an apocalyptic number.

121022102210111 is a deficient number, since it is larger than the sum of its proper divisors (10693843801).

121022102210111 is a wasteful number, since it uses less digits than its factorization.

121022102210111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10693843800.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121022102210111 its reverse (111012201220121), we get a palindrome (232034303430232).

The spelling of 121022102210111 in words is "one hundred twenty-one trillion, twenty-two billion, one hundred two million, two hundred ten thousand, one hundred eleven".