3121220033232 has 80 divisors (see below), whose sum is σ = 9532790279040. Its totient is φ = 861026213376.

The previous prime is 3121220033227. The next prime is 3121220033249. The reversal of 3121220033232 is 2323300221213.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160151383 + ... + 160170870.

It is an arithmetic number, because the mean of its divisors is an integer number (119159878488).

Almost surely, 2^{3121220033232} is an apocalyptic number.

It is an amenable number.

3121220033232 is an abundant number, since it is smaller than the sum of its proper divisors (6411570245808).

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

3121220033232 is a wasteful number, since it uses less digits than its factorization.

3121220033232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320322300 (or 320322294 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 3121220033232 its reverse (2323300221213), we get a palindrome (5444520254445).

The spelling of 3121220033232 in words is "three trillion, one hundred twenty-one billion, two hundred twenty million, thirty-three thousand, two hundred thirty-two".