31033222133212 has 24 divisors (see below), whose sum is σ = 58485893555600. Its totient is φ = 14322975227136.

The previous prime is 31033222133197. The next prime is 31033222133257. The reversal of 31033222133212 is 21233122233013.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16755364 + ... + 18515092.

Almost surely, 2^{31033222133212} is an apocalyptic number.

It is an amenable number.

31033222133212 is a deficient number, since it is larger than the sum of its proper divisors (27452671422388).

31033222133212 is a wasteful number, since it uses less digits than its factorization.

31033222133212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2098885 (or 2098883 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 31033222133212 its reverse (21233122233013), we get a palindrome (52266344366225).

The spelling of 31033222133212 in words is "thirty-one trillion, thirty-three billion, two hundred twenty-two million, one hundred thirty-three thousand, two hundred twelve".