13662221101 has 4 divisors (see below), whose sum is σ = 13675629600. Its totient is φ = 13648812604.

The previous prime is 13662221077. The next prime is 13662221129. The reversal of 13662221101 is 10112226631.

It is a happy number.

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: 10112226631 = 13 ⋅777863587.

It is a cyclic number.

It is not a de Polignac number, because 13662221101 - 2¹⁵ = 13662188333 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 (13662221171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6702721 + ... + 6704758.

It is an arithmetic number, because the mean of its divisors is an integer number (3418907400).

Almost surely, 2^13662221101 is an apocalyptic number.

It is an amenable number.

13662221101 is a deficient number, since it is larger than the sum of its proper divisors (13408499).

13662221101 is a wasteful number, since it uses less digits than its factorization.

13662221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13408498.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 13662221101 its reverse (10112226631), we get a palindrome (23774447732).

The spelling of 13662221101 in words is "thirteen billion, six hundred sixty-two million, two hundred twenty-one thousand, one hundred one".