231120222212133 has 40 divisors (see below), whose sum is σ = 381456735092928. Its totient is φ = 138711539995776.

The previous prime is 231120222212107. The next prime is 231120222212137. The reversal of 231120222212133 is 331212222021132.

231120222212133 is a `hidden beast` number, since 2 + 311 + 2 + 0 + 2 + 2 + 2 + 212 + 133 = 666.

It is not a de Polignac number, because 231120222212133 - 2⁵ = 231120222212101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 231120222212097 and 231120222212106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231120222212137) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3648735691 + ... + 3648799032.

Almost surely, 2^{231120222212133} is an apocalyptic number.

231120222212133 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

231120222212133 is a deficient number, since it is larger than the sum of its proper divisors (150336512880795).

231120222212133 is a wasteful number, since it uses less digits than its factorization.

231120222212133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7297534775 (or 7297534766 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 231120222212133 its reverse (331212222021132), we get a palindrome (562332444233265).

The spelling of 231120222212133 in words is "two hundred thirty-one trillion, one hundred twenty billion, two hundred twenty-two million, two hundred twelve thousand, one hundred thirty-three".