13121202112202 has 4 divisors (see below), whose sum is σ = 19681803168306. Its totient is φ = 6560601056100.

The previous prime is 13121202112147. The next prime is 13121202112217. The reversal of 13121202112202 is 20221120212131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9711643555201 + 3409558557001 = 3116351^2 + 1846499^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3280300528049 + ... + 3280300528052.

Almost surely, 2^{13121202112202} is an apocalyptic number.

13121202112202 is a deficient number, since it is larger than the sum of its proper divisors (6560601056104).

13121202112202 is an equidigital number, since it uses as much as digits as its factorization.

13121202112202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6560601056103.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 13121202112202 its reverse (20221120212131), we get a palindrome (33342322324333).

The spelling of 13121202112202 in words is "thirteen trillion, one hundred twenty-one billion, two hundred two million, one hundred twelve thousand, two hundred two".