331020220202 has 12 divisors (see below), whose sum is σ = 577596506850. Its totient is φ = 141865808616.

The previous prime is 331020220171. The next prime is 331020220241. The reversal of 331020220202 is 202022020133.

It can be written as a sum of positive squares in only one way, i.e., 327606272161 + 3413948041 = 572369^2 + 58429^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1688878577 + ... + 1688878772.

Almost surely, 2^331020220202 is an apocalyptic number.

331020220202 is a deficient number, since it is larger than the sum of its proper divisors (246576286648).

331020220202 is a wasteful number, since it uses less digits than its factorization.

331020220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3377757365 (or 3377757358 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 331020220202 its reverse (202022020133), we get a palindrome (533042240335).

The spelling of 331020220202 in words is "three hundred thirty-one billion, twenty million, two hundred twenty thousand, two hundred two".