13100221001 has 6 divisors (see below), whose sum is σ = 15239032650. Its totient is φ = 11228760816.

The previous prime is 13100220989. The next prime is 13100221007. The reversal of 13100221001 is 10012200131.

It can be written as a sum of positive squares in only one way, i.e., 11973611776 + 1126609225 = 109424^2 + 33565^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13100221001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13100221007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 133675676 + ... + 133675773.

It is an arithmetic number, because the mean of its divisors is an integer number (2539838775).

Almost surely, 2^13100221001 is an apocalyptic number.

It is an amenable number.

13100221001 is a deficient number, since it is larger than the sum of its proper divisors (2138811649).

13100221001 is an equidigital number, since it uses as much as digits as its factorization.

13100221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267351463 (or 267351456 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 13100221001 its reverse (10012200131), we get a palindrome (23112421132).

The spelling of 13100221001 in words is "thirteen billion, one hundred million, two hundred twenty-one thousand, one".