1021312202 has 16 divisors (see below), whose sum is σ = 1564547400. Its totient is φ = 499910400.

The previous prime is 1021312177. The next prime is 1021312219. The reversal of 1021312202 is 2022131201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 659513761 + 361798441 = 25681^2 + 19021^2 .

It is a super-2 number, since 2×1021312202² = 2086157227908177608, 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, 10427 + ... + 46382.

Almost surely, 2^1021312202 is an apocalyptic number.

1021312202 is a deficient number, since it is larger than the sum of its proper divisors (543235198).

1021312202 is a wasteful number, since it uses less digits than its factorization.

1021312202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57001.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1021312202 is about 31957.9755616654. The cubic root of 1021312202 is about 1007.0541887453.

Adding to 1021312202 its reverse (2022131201), we get a palindrome (3043443403).

The spelling of 1021312202 in words is "one billion, twenty-one million, three hundred twelve thousand, two hundred two".