122112021112111 has 4 divisors (see below), whose sum is σ = 122112713113992. Its totient is φ = 122111329110232.

The previous prime is 122112021112093. The next prime is 122112021112163. The reversal of 122112021112111 is 111211120211221.

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

It is a cyclic number.

It is not a de Polignac number, because 122112021112111 - 2⁵ = 122112021112079 is a prime.

It is a super-2 number, since 2×122112021112111² (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 (122112021112171) 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, 345736180 + ... + 346089193.

It is an arithmetic number, because the mean of its divisors is an integer number (30528178278498).

Almost surely, 2^{122112021112111} is an apocalyptic number.

122112021112111 is a deficient number, since it is larger than the sum of its proper divisors (692001881).

122112021112111 is an equidigital number, since it uses as much as digits as its factorization.

122112021112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692001880.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 122112021112111 its reverse (111211120211221), we get a palindrome (233323141323332).

The spelling of 122112021112111 in words is "one hundred twenty-two trillion, one hundred twelve billion, twenty-one million, one hundred twelve thousand, one hundred eleven".