13100101002221 has 4 divisors (see below), whose sum is σ = 13112931660444. Its totient is φ = 13087270344000.

The previous prime is 13100101002181. The next prime is 13100101002227. The reversal of 13100101002221 is 12220010100131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9575992140100 + 3524108862121 = 3094510^2 + 1877261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13100101002221 is a prime.

It is a super-2 number, since 2×13100101002221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13100101002196 and 13100101002205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13100101002227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6415327580 + ... + 6415329621.

It is an arithmetic number, because the mean of its divisors is an integer number (3278232915111).

Almost surely, 2^{13100101002221} is an apocalyptic number.

It is an amenable number.

13100101002221 is a deficient number, since it is larger than the sum of its proper divisors (12830658223).

13100101002221 is a wasteful number, since it uses less digits than its factorization.

13100101002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12830658222.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 13100101002221 its reverse (12220010100131), we get a palindrome (25320111102352).

The spelling of 13100101002221 in words is "thirteen trillion, one hundred billion, one hundred one million, two thousand, two hundred twenty-one".