13121021202010 has 16 divisors (see below), whose sum is σ = 23851678147272. Its totient is φ = 5196444040000.

The previous prime is 13121021202001. The next prime is 13121021202053. The reversal of 13121021202010 is 1020212012131.

It can be written as a sum of positive squares in 4 ways, for example, as 12604679794249 + 516341407761 = 3550307^2 + 718569^2 .

It is a super-2 number, since 2×13121021202010² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6495554041 + ... + 6495556060.

Almost surely, 2^{13121021202010} is an apocalyptic number.

13121021202010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13121021202010 is a deficient number, since it is larger than the sum of its proper divisors (10730656945262).

13121021202010 is a wasteful number, since it uses less digits than its factorization.

13121021202010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12991110209.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 13121021202010 its reverse (1020212012131), we get a palindrome (14141233214141).

The spelling of 13121021202010 in words is "thirteen trillion, one hundred twenty-one billion, twenty-one million, two hundred two thousand, ten".