1331020202 has 16 divisors (see below), whose sum is σ = 2114906112. Its totient is φ = 626086080.

The previous prime is 1331020139. The next prime is 1331020211. The reversal of 1331020202 is 2020201331.

It is a happy number.

It is a super-2 number, since 2×1331020202² = 3543229556264241608, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83927 + ... + 98517.

It is an arithmetic number, because the mean of its divisors is an integer number (132181632).

Almost surely, 2^1331020202 is an apocalyptic number.

1331020202 is a deficient number, since it is larger than the sum of its proper divisors (783885910).

1331020202 is a wasteful number, since it uses less digits than its factorization.

1331020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17293.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1331020202 is about 36483.1495625035. The cubic root of 1331020202 is about 1100.0055652611.

Adding to 1331020202 its reverse (2020201331), we get a palindrome (3351221533).

The spelling of 1331020202 in words is "one billion, three hundred thirty-one million, twenty thousand, two hundred two".