13031221322002 has 32 divisors (see below), whose sum is σ = 22365819025200. Its totient is φ = 5660620971264.

The previous prime is 13031221321997. The next prime is 13031221322011. The reversal of 13031221322002 is 20022312213031.

It can be written as a sum of positive squares in 8 ways, for example, as 4106130796881 + 8925090525121 = 2026359^2 + 2987489^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50879877 + ... + 51135352.

Almost surely, 2^{13031221322002} is an apocalyptic number.

13031221322002 is a deficient number, since it is larger than the sum of its proper divisors (9334597703198).

13031221322002 is a wasteful number, since it uses less digits than its factorization.

13031221322002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102015295 (or 102015261 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13031221322002 its reverse (20022312213031), we get a palindrome (33053533535033).

The spelling of 13031221322002 in words is "thirteen trillion, thirty-one billion, two hundred twenty-one million, three hundred twenty-two thousand, two".