231121222121132 has 48 divisors (see below), whose sum is σ = 471177182273280. Its totient is φ = 97154536802112.

The previous prime is 231121222121131. The next prime is 231121222121173.

231121222121132 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×231121222121132² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231121222121131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357409883 + ... + 358055954.

It is an arithmetic number, because the mean of its divisors is an integer number (9816191297360).

Almost surely, 2^{231121222121132} is an apocalyptic number.

It is an amenable number.

231121222121132 is an abundant number, since it is smaller than the sum of its proper divisors (240055960152148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231121222121132 is a wasteful number, since it uses less digits than its factorization.

231121222121132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715466070 (or 715466068 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The spelling of 231121222121132 in words is "two hundred thirty-one trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred thirty-two".