122231121311 has 4 divisors (see below), whose sum is σ = 131633515272. Its totient is φ = 112828727352.

The previous prime is 122231121289. The next prime is 122231121343. The reversal of 122231121311 is 113121132221.

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 122231121311 - 2³⁴ = 105051252127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122231121011) 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, 4701196961 + ... + 4701196986.

It is an arithmetic number, because the mean of its divisors is an integer number (32908378818).

Almost surely, 2^122231121311 is an apocalyptic number.

122231121311 is a deficient number, since it is larger than the sum of its proper divisors (9402393961).

122231121311 is an equidigital number, since it uses as much as digits as its factorization.

122231121311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9402393960.

The product of its digits is 144, while the sum is 20.

Adding to 122231121311 its reverse (113121132221), we get a palindrome (235352253532).

The spelling of 122231121311 in words is "one hundred twenty-two billion, two hundred thirty-one million, one hundred twenty-one thousand, three hundred eleven".