122012113111 has 8 divisors (see below), whose sum is σ = 139466172704. Its totient is φ = 104563992960.

The previous prime is 122012113087. The next prime is 122012113117. The reversal of 122012113111 is 111311210221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122012113111 - 2⁵ = 122012113079 is a prime.

It is a super-2 number, since 2×122012113111² (a number of 23 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 (122012113117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1440750 + ... + 1523083.

It is an arithmetic number, because the mean of its divisors is an integer number (17433271588).

Almost surely, 2^122012113111 is an apocalyptic number.

122012113111 is a deficient number, since it is larger than the sum of its proper divisors (17454059593).

122012113111 is an equidigital number, since it uses as much as digits as its factorization.

122012113111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2969721.

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

Adding to 122012113111 its reverse (111311210221), we get a palindrome (233323323332).

The spelling of 122012113111 in words is "one hundred twenty-two billion, twelve million, one hundred thirteen thousand, one hundred eleven".