22113215455 has 32 divisors (see below), whose sum is σ = 28511481600. Its totient is φ = 16415638272.

The previous prime is 22113215447. The next prime is 22113215491. The reversal of 22113215455 is 55451231122.

It is a cyclic number.

It is not a de Polignac number, because 22113215455 - 2³ = 22113215447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 892464 + ... + 916906.

It is an arithmetic number, because the mean of its divisors is an integer number (890983800).

Almost surely, 2^22113215455 is an apocalyptic number.

22113215455 is a deficient number, since it is larger than the sum of its proper divisors (6398266145).

22113215455 is a wasteful number, since it uses less digits than its factorization.

22113215455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24663.

The product of its digits is 12000, while the sum is 31.

Adding to 22113215455 its reverse (55451231122), we get a palindrome (77564446577).

The spelling of 22113215455 in words is "twenty-two billion, one hundred thirteen million, two hundred fifteen thousand, four hundred fifty-five".