122320312402 has 16 divisors (see below), whose sum is σ = 185609762712. Its totient is φ = 60452435200.

The previous prime is 122320312379. The next prime is 122320312421. The reversal of 122320312402 is 204213023221.

It can be written as a sum of positive squares in 4 ways, for example, as 121340058921 + 980253481 = 348339^2 + 31309^2 .

It is a super-2 number, since 2×122320312402² (a number of 23 digits) 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, 390793 + ... + 630364.

Almost surely, 2^122320312402 is an apocalyptic number.

122320312402 is a deficient number, since it is larger than the sum of its proper divisors (63289450310).

122320312402 is a wasteful number, since it uses less digits than its factorization.

122320312402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021853.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 122320312402 its reverse (204213023221), we get a palindrome (326533335623).

The spelling of 122320312402 in words is "one hundred twenty-two billion, three hundred twenty million, three hundred twelve thousand, four hundred two".