122111120011031 has 4 divisors (see below), whose sum is σ = 122433312940200. Its totient is φ = 121788927081864.

The previous prime is 122111120010983. The next prime is 122111120011051. The reversal of 122111120011031 is 130110021111221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122111120011031 is a prime.

It is a super-2 number, since 2×122111120011031² (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 (122111120011051) 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, 161096464016 + ... + 161096464773.

It is an arithmetic number, because the mean of its divisors is an integer number (30608328235050).

Almost surely, 2^{122111120011031} is an apocalyptic number.

122111120011031 is a deficient number, since it is larger than the sum of its proper divisors (322192929169).

122111120011031 is an equidigital number, since it uses as much as digits as its factorization.

122111120011031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322192929168.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 122111120011031 its reverse (130110021111221), we get a palindrome (252221141122252).

The spelling of 122111120011031 in words is "one hundred twenty-two trillion, one hundred eleven billion, one hundred twenty million, eleven thousand, thirty-one".