22185243013 has 2 divisors, whose sum is σ = 22185243014. Its totient is φ = 22185243012.

The previous prime is 22185242999. The next prime is 22185243037. The reversal of 22185243013 is 31034258122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21258223204 + 927019809 = 145802^2 + 30447^2 .

It is a cyclic number.

It is not a de Polignac number, because 22185243013 - 2⁹ = 22185242501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22185247013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11092621506 + 11092621507.

It is an arithmetic number, because the mean of its divisors is an integer number (11092621507).

Almost surely, 2^22185243013 is an apocalyptic number.

It is an amenable number.

22185243013 is a deficient number, since it is larger than the sum of its proper divisors (1).

22185243013 is an equidigital number, since it uses as much as digits as its factorization.

22185243013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 22185243013 in words is "twenty-two billion, one hundred eighty-five million, two hundred forty-three thousand, thirteen".