122122223121231 has 24 divisors (see below), whose sum is σ = 176455359400320. Its totient is φ = 81388697268816.

The previous prime is 122122223121209. The next prime is 122122223121247. The reversal of 122122223121231 is 132121322221221.

122122223121231 is a `hidden beast` number, since 1 + 2 + 2 + 1 + 2 + 222 + 312 + 123 + 1 = 666.

It is not a de Polignac number, because 122122223121231 - 2⁴² = 117724176610127 is a prime.

It is a super-2 number, since 2×122122223121231² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122122223121195 and 122122223121204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122122223121281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1806000340 + ... + 1806067958.

It is an arithmetic number, because the mean of its divisors is an integer number (7352306641680).

Almost surely, 2^{122122223121231} is an apocalyptic number.

122122223121231 is a deficient number, since it is larger than the sum of its proper divisors (54333136279089).

122122223121231 is a wasteful number, since it uses less digits than its factorization.

122122223121231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129035 (or 129032 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

Adding to 122122223121231 its reverse (132121322221221), we get a palindrome (254243545342452).

The spelling of 122122223121231 in words is "one hundred twenty-two trillion, one hundred twenty-two billion, two hundred twenty-three million, one hundred twenty-one thousand, two hundred thirty-one".