22245420412205 has 16 divisors (see below), whose sum is σ = 27855347143680. Its totient is φ = 17022453009408.

The previous prime is 22245420412157. The next prime is 22245420412213. The reversal of 22245420412205 is 50221402454222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22245420412205 is a prime.

It is a super-2 number, since 2×22245420412205² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16106381 + ... + 17432909.

It is an arithmetic number, because the mean of its divisors is an integer number (1740959196480).

Almost surely, 2^{22245420412205} is an apocalyptic number.

It is an amenable number.

22245420412205 is a deficient number, since it is larger than the sum of its proper divisors (5609926731475).

22245420412205 is a wasteful number, since it uses less digits than its factorization.

22245420412205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472380.

The product of its (nonzero) digits is 102400, while the sum is 35.

Adding to 22245420412205 its reverse (50221402454222), we get a palindrome (72466822866427).

The spelling of 22245420412205 in words is "twenty-two trillion, two hundred forty-five billion, four hundred twenty million, four hundred twelve thousand, two hundred five".