13010012221 has 4 divisors (see below), whose sum is σ = 13174696000. Its totient is φ = 12845328444.

The previous prime is 13010012209. The next prime is 13010012227. The reversal of 13010012221 is 12221001031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12221001031 = 42433 ⋅288007.

It is a cyclic number.

It is not a de Polignac number, because 13010012221 - 2¹⁷ = 13009881149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13010012227) 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, 82341771 + ... + 82341928.

It is an arithmetic number, because the mean of its divisors is an integer number (3293674000).

Almost surely, 2^13010012221 is an apocalyptic number.

It is an amenable number.

13010012221 is a deficient number, since it is larger than the sum of its proper divisors (164683779).

13010012221 is an equidigital number, since it uses as much as digits as its factorization.

13010012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164683778.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 13010012221 its reverse (12221001031), we get a palindrome (25231013252).

The spelling of 13010012221 in words is "thirteen billion, ten million, twelve thousand, two hundred twenty-one".