331221031202130 has 64 divisors (see below), whose sum is σ = 796936180965120. Its totient is φ = 88102939631616.

The previous prime is 331221031202129. The next prime is 331221031202167. The reversal of 331221031202130 is 31202130122133.

It is a self number, because there is not a number n which added to its sum of digits gives 331221031202130.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22404066 + ... + 34123074.

It is an arithmetic number, because the mean of its divisors is an integer number (12452127827580).

Almost surely, 2^{331221031202130} is an apocalyptic number.

331221031202130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

331221031202130 is an abundant number, since it is smaller than the sum of its proper divisors (465715149762990).

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

331221031202130 is a wasteful number, since it uses less digits than its factorization.

331221031202130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11721395.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 331221031202130 its reverse (31202130122133), we get a palindrome (362423161324263).

The spelling of 331221031202130 in words is "three hundred thirty-one trillion, two hundred twenty-one billion, thirty-one million, two hundred two thousand, one hundred thirty".