331201332121112 has 8 divisors (see below), whose sum is σ = 621002497727100. Its totient is φ = 165600666060552.

The previous prime is 331201332121111. The next prime is 331201332121117. The reversal of 331201332121112 is 211121233102133.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×331201332121112² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331201332121111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20700083257562 + ... + 20700083257577.

Almost surely, 2^{331201332121112} is an apocalyptic number.

It is an amenable number.

331201332121112 is a deficient number, since it is larger than the sum of its proper divisors (289801165605988).

331201332121112 is a wasteful number, since it uses less digits than its factorization.

331201332121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41400166515145 (or 41400166515141 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 331201332121112 its reverse (211121233102133), we get a palindrome (542322565223245).

The spelling of 331201332121112 in words is "three hundred thirty-one trillion, two hundred one billion, three hundred thirty-two million, one hundred twenty-one thousand, one hundred twelve".