122131120111 has 48 divisors (see below), whose sum is σ = 168561999648. Its totient is φ = 86976288000.

The previous prime is 122131120093. The next prime is 122131120127. The reversal of 122131120111 is 111021131221.

It is a happy number.

It is not a de Polignac number, because 122131120111 - 2⁵ = 122131120079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122131120141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 621421 + ... + 793993.

It is an arithmetic number, because the mean of its divisors is an integer number (3511708326).

Almost surely, 2^122131120111 is an apocalyptic number.

122131120111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122131120111 is a deficient number, since it is larger than the sum of its proper divisors (46430879537).

122131120111 is a wasteful number, since it uses less digits than its factorization.

122131120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172712 (or 172705 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 122131120111 its reverse (111021131221), we get a palindrome (233152251332).

It can be divided in two parts, 122131 and 120111, that added together give a palindrome (242242).

The spelling of 122131120111 in words is "one hundred twenty-two billion, one hundred thirty-one million, one hundred twenty thousand, one hundred eleven".