22420090243 has 8 divisors (see below), whose sum is σ = 22790103840. Its totient is φ = 22050156480.

The previous prime is 22420090177. The next prime is 22420090283. The reversal of 22420090243 is 34209002422.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22420090243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22420090283) 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, 871146 + ... + 896512.

It is an arithmetic number, because the mean of its divisors is an integer number (2848762980).

Almost surely, 2^22420090243 is an apocalyptic number.

22420090243 is a deficient number, since it is larger than the sum of its proper divisors (370013597).

22420090243 is a wasteful number, since it uses less digits than its factorization.

22420090243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39917.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 22420090243 its reverse (34209002422), we get a palindrome (56629092665).

The spelling of 22420090243 in words is "twenty-two billion, four hundred twenty million, ninety thousand, two hundred forty-three".