3101220032100 has 72 divisors (see below), whose sum is σ = 9073682059680. Its totient is φ = 817699956480.

The previous prime is 3101220032047. The next prime is 3101220032143. The reversal of 3101220032100 is 12300221013.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 3101220032100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58048582 + ... + 58101981.

It is an arithmetic number, because the mean of its divisors is an integer number (126023361940).

Almost surely, 2^{3101220032100} is an apocalyptic number.

3101220032100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3101220032100 is an abundant number, since it is smaller than the sum of its proper divisors (5972462027580).

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

3101220032100 is a wasteful number, since it uses less digits than its factorization.

3101220032100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116150669 (or 116150662 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 3101220032100 its reverse (12300221013), we get a palindrome (3113520253113).

The spelling of 3101220032100 in words is "three trillion, one hundred one billion, two hundred twenty million, thirty-two thousand, one hundred".