13022121222101 has 4 divisors (see below), whose sum is σ = 13267821622572. Its totient is φ = 12776420821632.

The previous prime is 13022121222091. The next prime is 13022121222109. The reversal of 13022121222101 is 10122212122031.

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 7526238073201 + 5495883148900 = 2743399^2 + 2344330^2 .

It is a cyclic number.

It is not a de Polignac number, because 13022121222101 - 2³⁰ = 13021047480277 is a prime.

It is a super-2 number, since 2×13022121222101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13022121222109) 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, 122850200156 + ... + 122850200261.

It is an arithmetic number, because the mean of its divisors is an integer number (3316955405643).

Almost surely, 2^{13022121222101} is an apocalyptic number.

It is an amenable number.

13022121222101 is a deficient number, since it is larger than the sum of its proper divisors (245700400471).

13022121222101 is an equidigital number, since it uses as much as digits as its factorization.

13022121222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245700400470.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 13022121222101 its reverse (10122212122031), we get a palindrome (23144333344132).

The spelling of 13022121222101 in words is "thirteen trillion, twenty-two billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred one".