13623262221 has 16 divisors (see below), whose sum is σ = 18565530624. Its totient is φ = 8881890864.

The previous prime is 13623262151. The next prime is 13623262253. The reversal of 13623262221 is 12226232631.

It is not a de Polignac number, because 13623262221 - 2¹¹ = 13623260173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13623262271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143250 + ... + 218556.

It is an arithmetic number, because the mean of its divisors is an integer number (1160345664).

Almost surely, 2^13623262221 is an apocalyptic number.

It is an amenable number.

13623262221 is a deficient number, since it is larger than the sum of its proper divisors (4942268403).

13623262221 is a wasteful number, since it uses less digits than its factorization.

13623262221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76640.

The product of its digits is 10368, while the sum is 30.

Adding to 13623262221 its reverse (12226232631), we get a palindrome (25849494852).

The spelling of 13623262221 in words is "thirteen billion, six hundred twenty-three million, two hundred sixty-two thousand, two hundred twenty-one".