12222053551 has 2 divisors, whose sum is σ = 12222053552. Its totient is φ = 12222053550.

The previous prime is 12222053533. The next prime is 12222053573. The reversal of 12222053551 is 15535022221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12222053551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12222003551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111026775 + 6111026776.

It is an arithmetic number, because the mean of its divisors is an integer number (6111026776).

Almost surely, 2^12222053551 is an apocalyptic number.

12222053551 is a deficient number, since it is larger than the sum of its proper divisors (1).

12222053551 is an equidigital number, since it uses as much as digits as its factorization.

12222053551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 12222053551 its reverse (15535022221), we get a palindrome (27757075772).

The spelling of 12222053551 in words is "twelve billion, two hundred twenty-two million, fifty-three thousand, five hundred fifty-one".