122112112112111 has 12 divisors (see below), whose sum is σ = 134223206586000. Its totient is φ = 111010347402240.

The previous prime is 122112112112021. The next prime is 122112112112117. The reversal of 122112112112111 is 111211211211221.

It is a de Polignac number, because none of the positive numbers 2^k-122112112112111 is a prime.

It is a super-2 number, since 2×122112112112111² (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 (122112112112117) 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, 17905775 + ... + 23766383.

It is an arithmetic number, because the mean of its divisors is an integer number (11185267215500).

Almost surely, 2^{122112112112111} is an apocalyptic number.

122112112112111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122112112112111 is a deficient number, since it is larger than the sum of its proper divisors (12111094473889).

122112112112111 is a wasteful number, since it uses less digits than its factorization.

122112112112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6032830 (or 6032819 counting only the distinct ones).

The product of its digits is 32, while the sum is 20.

Adding to 122112112112111 its reverse (111211211211221), we get a palindrome (233323323323332).

The spelling of 122112112112111 in words is "one hundred twenty-two trillion, one hundred twelve billion, one hundred twelve million, one hundred twelve thousand, one hundred eleven".