22126046405 has 4 divisors (see below), whose sum is σ = 26551255692. Its totient is φ = 17700837120.

The previous prime is 22126046401. The next prime is 22126046419. The reversal of 22126046405 is 50464062122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16114525249 + 6011521156 = 126943^2 + 77534^2 .

It is not a de Polignac number, because 22126046405 - 2² = 22126046401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22126046401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2212604636 + ... + 2212604645.

It is an arithmetic number, because the mean of its divisors is an integer number (6637813923).

Almost surely, 2^22126046405 is an apocalyptic number.

It is an amenable number.

22126046405 is a deficient number, since it is larger than the sum of its proper divisors (4425209287).

22126046405 is an equidigital number, since it uses as much as digits as its factorization.

22126046405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4425209286.

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 22126046405 in words is "twenty-two billion, one hundred twenty-six million, forty-six thousand, four hundred five".