22101015253 has 4 divisors (see below), whose sum is σ = 22102650028. Its totient is φ = 22099380480.

The previous prime is 22101015239. The next prime is 22101015271. The reversal of 22101015253 is 35251010122.

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 16104371409 + 5996643844 = 126903^2 + 77438^2 .

It is a cyclic number.

It is not a de Polignac number, because 22101015253 - 2⁵ = 22101015221 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 (22101015203) 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, 796938 + ... + 824203.

It is an arithmetic number, because the mean of its divisors is an integer number (5525662507).

Almost surely, 2^22101015253 is an apocalyptic number.

It is an amenable number.

22101015253 is a deficient number, since it is larger than the sum of its proper divisors (1634775).

22101015253 is a wasteful number, since it uses less digits than its factorization.

22101015253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634774.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 22101015253 its reverse (35251010122), we get a palindrome (57352025375).

The spelling of 22101015253 in words is "twenty-two billion, one hundred one million, fifteen thousand, two hundred fifty-three".