22521412005 has 16 divisors (see below), whose sum is σ = 36038407680. Its totient is φ = 12010036928.

The previous prime is 22521411931. The next prime is 22521412027. The reversal of 22521412005 is 50021412522.

It is a cyclic number.

It is not a de Polignac number, because 22521412005 - 2¹⁰ = 22521410981 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 15 ways as a sum of consecutive naturals, for example, 55756 + ... + 219434.

It is an arithmetic number, because the mean of its divisors is an integer number (2252400480).

Almost surely, 2^22521412005 is an apocalyptic number.

It is an amenable number.

22521412005 is a deficient number, since it is larger than the sum of its proper divisors (13516995675).

22521412005 is a wasteful number, since it uses less digits than its factorization.

22521412005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172860.

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 22521412005 its reverse (50021412522), we get a palindrome (72542824527).

The spelling of 22521412005 in words is "twenty-two billion, five hundred twenty-one million, four hundred twelve thousand, five".