31033220010212 has 12 divisors (see below), whose sum is σ = 62066440020480. Its totient is φ = 13299951432936.

The previous prime is 31033220010209. The next prime is 31033220010217. The reversal of 31033220010212 is 21201002233013.

31033220010212 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (31033220010217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554164643012 + ... + 554164643067.

It is an arithmetic number, because the mean of its divisors is an integer number (5172203335040).

Almost surely, 2^{31033220010212} is an apocalyptic number.

It is an amenable number.

31033220010212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31033220010212 is a wasteful number, since it uses less digits than its factorization.

31033220010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108329286090 (or 1108329286088 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31033220010212 its reverse (21201002233013), we get a palindrome (52234222243225).

The spelling of 31033220010212 in words is "thirty-one trillion, thirty-three billion, two hundred twenty million, ten thousand, two hundred twelve".