11221552005253 has 4 divisors (see below), whose sum is σ = 11379602033568. Its totient is φ = 11063501976940.

The previous prime is 11221552005217. The next prime is 11221552005269. The reversal of 11221552005253 is 35250025512211.

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-11221552005253 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 (11221552005353) 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, 79025014051 + ... + 79025014192.

It is an arithmetic number, because the mean of its divisors is an integer number (2844900508392).

Almost surely, 2^{11221552005253} is an apocalyptic number.

It is an amenable number.

11221552005253 is a deficient number, since it is larger than the sum of its proper divisors (158050028315).

11221552005253 is an equidigital number, since it uses as much as digits as its factorization.

11221552005253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158050028314.

The product of its (nonzero) digits is 30000, while the sum is 34.

Adding to 11221552005253 its reverse (35250025512211), we get a palindrome (46471577517464).

The spelling of 11221552005253 in words is "eleven trillion, two hundred twenty-one billion, five hundred fifty-two million, five thousand, two hundred fifty-three".