12722155154 has 8 divisors (see below), whose sum is σ = 19344647100. Its totient is φ = 6273939456.

The previous prime is 12722155153. The next prime is 12722155157. The reversal of 12722155154 is 45155122721.

It can be written as a sum of positive squares in 2 ways, for example, as 12282623929 + 439531225 = 110827^2 + 20965^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12722155153) 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, 43568879 + ... + 43569170.

Almost surely, 2^12722155154 is an apocalyptic number.

12722155154 is a deficient number, since it is larger than the sum of its proper divisors (6622491946).

12722155154 is an equidigital number, since it uses as much as digits as its factorization.

12722155154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87138124.

The product of its digits is 28000, while the sum is 35.

Adding to 12722155154 its reverse (45155122721), we get a palindrome (57877277875).

The spelling of 12722155154 in words is "twelve billion, seven hundred twenty-two million, one hundred fifty-five thousand, one hundred fifty-four".