12220003553 has 4 divisors (see below), whose sum is σ = 12614197248. Its totient is φ = 11825809860.

The previous prime is 12220003541. The next prime is 12220003573. The reversal of 12220003553 is 35530002221.

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 not a de Polignac number, because 12220003553 - 2²⁰ = 12218954977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12220003573) 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, 197096801 + ... + 197096862.

It is an arithmetic number, because the mean of its divisors is an integer number (3153549312).

Almost surely, 2^12220003553 is an apocalyptic number.

It is an amenable number.

12220003553 is a deficient number, since it is larger than the sum of its proper divisors (394193695).

12220003553 is an equidigital number, since it uses as much as digits as its factorization.

12220003553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394193694.

The product of its (nonzero) digits is 1800, while the sum is 23.

Adding to 12220003553 its reverse (35530002221), we get a palindrome (47750005774).

The spelling of 12220003553 in words is "twelve billion, two hundred twenty million, three thousand, five hundred fifty-three".