12622556441 has 4 divisors (see below), whose sum is σ = 13770061584. Its totient is φ = 11475051300.

The previous prime is 12622556431. The next prime is 12622556449. The reversal of 12622556441 is 14465522621.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14465522621 = 11 ⋅1315047511.

It is a cyclic number.

It is not a de Polignac number, because 12622556441 - 2¹⁴ = 12622540057 is a prime.

It is a super-2 number, since 2×12622556441² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12622556395 and 12622556404.

It is not an unprimeable number, because it can be changed into a prime (12622556449) 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, 573752555 + ... + 573752576.

It is an arithmetic number, because the mean of its divisors is an integer number (3442515396).

Almost surely, 2^12622556441 is an apocalyptic number.

12622556441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12622556441 is a deficient number, since it is larger than the sum of its proper divisors (1147505143).

12622556441 is a wasteful number, since it uses less digits than its factorization.

12622556441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147505142.

The product of its digits is 115200, while the sum is 38.

The spelling of 12622556441 in words is "twelve billion, six hundred twenty-two million, five hundred fifty-six thousand, four hundred forty-one".