331132221121002 has 64 divisors (see below), whose sum is σ = 757213223768064. Its totient is φ = 94566768724800.

The previous prime is 331132221120979. The next prime is 331132221121061. The reversal of 331132221121002 is 200121122231133.

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, 844220943 + ... + 844613085.

It is an arithmetic number, because the mean of its divisors is an integer number (11831456621376).

Almost surely, 2^{331132221121002} is an apocalyptic number.

331132221121002 is an abundant number, since it is smaller than the sum of its proper divisors (426081002647062).

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

331132221121002 is a wasteful number, since it uses less digits than its factorization.

331132221121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401123.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 331132221121002 its reverse (200121122231133), we get a palindrome (531253343352135).

The spelling of 331132221121002 in words is "three hundred thirty-one trillion, one hundred thirty-two billion, two hundred twenty-one million, one hundred twenty-one thousand, two".