122312001231 has 192 divisors, whose sum is σ = 229456281600. Its totient is φ = 61169188608.

The previous prime is 122312001223. The next prime is 122312001233. The reversal of 122312001231 is 132100213221.

122312001231 is a `hidden beast` number, since 1 + 2 + 231 + 200 + 1 + 231 = 666.

It is not a de Polignac number, because 122312001231 - 2³ = 122312001223 is a prime.

It is a super-2 number, since 2×122312001231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122312001233) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 170113690 + ... + 170114408.

It is an arithmetic number, because the mean of its divisors is an integer number (1195084800).

Almost surely, 2^122312001231 is an apocalyptic number.

122312001231 is a deficient number, since it is larger than the sum of its proper divisors (107144280369).

122312001231 is a wasteful number, since it uses less digits than its factorization.

122312001231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978 (or 975 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 122312001231 its reverse (132100213221), we get a palindrome (254412214452).

The spelling of 122312001231 in words is "one hundred twenty-two billion, three hundred twelve million, one thousand, two hundred thirty-one".