331221100212010 has 64 divisors (see below), whose sum is σ = 625230413650080. Its totient is φ = 126162468311040.

The previous prime is 331221100212007. The next prime is 331221100212031. The reversal of 331221100212010 is 10212001122133.

It can be written as a sum of positive squares in 16 ways, for example, as 71554528738081 + 259666571473929 = 8458991^2 + 16114173^2 .

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, 548276320 + ... + 548880100.

Almost surely, 2^{331221100212010} is an apocalyptic number.

331221100212010 is a deficient number, since it is larger than the sum of its proper divisors (294009313438070).

331221100212010 is a wasteful number, since it uses less digits than its factorization.

331221100212010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629803.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 331221100212010 its reverse (10212001122133), we get a palindrome (341433101334143).

The spelling of 331221100212010 in words is "three hundred thirty-one trillion, two hundred twenty-one billion, one hundred million, two hundred twelve thousand, ten".