23022421994 has 64 divisors (see below), whose sum is σ = 42567275520. Its totient is φ = 9194688000.

The previous prime is 23022421993. The next prime is 23022422041. The reversal of 23022421994 is 49912422032.

It is not an unprimeable number, because it can be changed into a prime (23022421993) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 519542 + ... + 562110.

It is an arithmetic number, because the mean of its divisors is an integer number (665113680).

Almost surely, 2^23022421994 is an apocalyptic number.

23022421994 is a deficient number, since it is larger than the sum of its proper divisors (19544853526).

23022421994 is a wasteful number, since it uses less digits than its factorization.

23022421994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42687.

The product of its (nonzero) digits is 62208, while the sum is 38.

Adding to 23022421994 its sum of digits (38), we get a palindrome (23022422032).

The spelling of 23022421994 in words is "twenty-three billion, twenty-two million, four hundred twenty-one thousand, nine hundred ninety-four".