22002891305 has 8 divisors (see below), whose sum is σ = 26433444744. Its totient is φ = 17582329600.

The previous prime is 22002891301. The next prime is 22002891311. The reversal of 22002891305 is 50319820022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5220207001 + 16782684304 = 72251^2 + 129548^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22002891305 - 2² = 22002891301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22002891301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2493086 + ... + 2501895.

It is an arithmetic number, because the mean of its divisors is an integer number (3304180593).

Almost surely, 2^22002891305 is an apocalyptic number.

It is an amenable number.

22002891305 is a deficient number, since it is larger than the sum of its proper divisors (4430553439).

22002891305 is an equidigital number, since it uses as much as digits as its factorization.

22002891305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4995867.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 22002891305 in words is "twenty-two billion, two million, eight hundred ninety-one thousand, three hundred five".