22101244465 has 8 divisors (see below), whose sum is σ = 26524718568. Its totient is φ = 17678845440.

The previous prime is 22101244453. The next prime is 22101244471. The reversal of 22101244465 is 56444210122.

It can be written as a sum of positive squares in 4 ways, for example, as 7263811984 + 14837432481 = 85228^2 + 121809^2 .

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

It is not a de Polignac number, because 22101244465 - 2⁹ = 22101243953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222826 + ... + 306355.

It is an arithmetic number, because the mean of its divisors is an integer number (3315589821).

Almost surely, 2^22101244465 is an apocalyptic number.

It is an amenable number.

22101244465 is a deficient number, since it is larger than the sum of its proper divisors (4423474103).

22101244465 is an equidigital number, since it uses as much as digits as its factorization.

22101244465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537539.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 22101244465 its reverse (56444210122), we get a palindrome (78545454587).

The spelling of 22101244465 in words is "twenty-two billion, one hundred one million, two hundred forty-four thousand, four hundred sixty-five".