122221002022111 has 12 divisors (see below), whose sum is σ = 135478312463952. Its totient is φ = 110030160382208.

The previous prime is 122221002022099. The next prime is 122221002022123. The reversal of 122221002022111 is 111220200122221.

It is an interprime number because it is at equal distance from previous prime (122221002022099) and next prime (122221002022123).

It is a de Polignac number, because none of the positive numbers 2^k-122221002022111 is a prime.

It is a super-2 number, since 2×122221002022111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221002022711) 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, 9193689910 + ... + 9193703203.

It is an arithmetic number, because the mean of its divisors is an integer number (11289859371996).

Almost surely, 2^{122221002022111} is an apocalyptic number.

122221002022111 is a deficient number, since it is larger than the sum of its proper divisors (13257310441841).

122221002022111 is a wasteful number, since it uses less digits than its factorization.

122221002022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18387393170 (or 18387393153 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 122221002022111 its reverse (111220200122221), we get a palindrome (233441202144332).

The spelling of 122221002022111 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, two million, twenty-two thousand, one hundred eleven".