122210111012121 has 24 divisors (see below), whose sum is σ = 192573873614304. Its totient is φ = 74066593426560.

The previous prime is 122210111012039. The next prime is 122210111012123. The reversal of 122210111012121 is 121210111012221.

It is a happy number.

It is not a de Polignac number, because 122210111012121 - 2¹⁴ = 122210110995737 is a prime.

It is a super-2 number, since 2×122210111012121² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122210111012094 and 122210111012103.

It is not an unprimeable number, because it can be changed into a prime (122210111012123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78542130 + ... + 80082996.

It is an arithmetic number, because the mean of its divisors is an integer number (8023911400596).

Almost surely, 2^{122210111012121} is an apocalyptic number.

122210111012121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122210111012121 is a deficient number, since it is larger than the sum of its proper divisors (70363762602183).

122210111012121 is a wasteful number, since it uses less digits than its factorization.

122210111012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2342021 (or 2342018 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 122210111012121 its reverse (121210111012221), we get a palindrome (243420222024342).

The spelling of 122210111012121 in words is "one hundred twenty-two trillion, two hundred ten billion, one hundred eleven million, twelve thousand, one hundred twenty-one".