122113113211 has 4 divisors (see below), whose sum is σ = 122219207424. Its totient is φ = 122007019000.

The previous prime is 122113113181. The next prime is 122113113223. The reversal of 122113113211 is 112311311221.

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-122113113211 is a prime.

It is a super-2 number, since 2×122113113211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122113113511) 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, 53045380 + ... + 53047681.

It is an arithmetic number, because the mean of its divisors is an integer number (30554801856).

Almost surely, 2^122113113211 is an apocalyptic number.

122113113211 is a deficient number, since it is larger than the sum of its proper divisors (106094213).

122113113211 is a wasteful number, since it uses less digits than its factorization.

122113113211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106094212.

The product of its digits is 72, while the sum is 19.

Adding to 122113113211 its reverse (112311311221), we get a palindrome (234424424432).

The spelling of 122113113211 in words is "one hundred twenty-two billion, one hundred thirteen million, one hundred thirteen thousand, two hundred eleven".