22621448242 has 16 divisors (see below), whose sum is σ = 35941848120. Its totient is φ = 10641338368.

The previous prime is 22621448219. The next prime is 22621448249. The reversal of 22621448242 is 24284412622.

It can be written as a sum of positive squares in 4 ways, for example, as 21897784441 + 723663801 = 147979^2 + 26901^2 .

It is not an unprimeable number, because it can be changed into a prime (22621448249) 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, 34867 + ... + 215542.

Almost surely, 2^22621448242 is an apocalyptic number.

22621448242 is a deficient number, since it is larger than the sum of its proper divisors (13320399878).

22621448242 is a wasteful number, since it uses less digits than its factorization.

22621448242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253085.

The product of its digits is 98304, while the sum is 37.

The spelling of 22621448242 in words is "twenty-two billion, six hundred twenty-one million, four hundred forty-eight thousand, two hundred forty-two".