22121353153 has 4 divisors (see below), whose sum is σ = 22121894448. Its totient is φ = 22120811860.

The previous prime is 22121353099. The next prime is 22121353169. The reversal of 22121353153 is 35135312122.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22121353153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22121353453) 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, 203851 + ... + 292912.

It is an arithmetic number, because the mean of its divisors is an integer number (5530473612).

Almost surely, 2^22121353153 is an apocalyptic number.

It is an amenable number.

22121353153 is a deficient number, since it is larger than the sum of its proper divisors (541295).

22121353153 is an equidigital number, since it uses as much as digits as its factorization.

22121353153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541294.

The product of its digits is 5400, while the sum is 28.

Adding to 22121353153 its reverse (35135312122), we get a palindrome (57256665275).

The spelling of 22121353153 in words is "twenty-two billion, one hundred twenty-one million, three hundred fifty-three thousand, one hundred fifty-three".