12222335557 has 4 divisors (see below), whose sum is σ = 12359665260. Its totient is φ = 12085005856.

The previous prime is 12222335551. The next prime is 12222335569. The reversal of 12222335557 is 75553322221.

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 5759140321 + 6463195236 = 75889^2 + 80394^2 .

It is a cyclic number.

It is not a de Polignac number, because 12222335557 - 2¹⁵ = 12222302789 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222335551) 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, 68664718 + ... + 68664895.

It is an arithmetic number, because the mean of its divisors is an integer number (3089916315).

Almost surely, 2^12222335557 is an apocalyptic number.

It is an amenable number.

12222335557 is a deficient number, since it is larger than the sum of its proper divisors (137329703).

12222335557 is an equidigital number, since it uses as much as digits as its factorization.

12222335557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137329702.

The product of its digits is 126000, while the sum is 37.

Adding to 12222335557 its reverse (75553322221), we get a palindrome (87775657778).

The spelling of 12222335557 in words is "twelve billion, two hundred twenty-two million, three hundred thirty-five thousand, five hundred fifty-seven".