22421443504 has 20 divisors (see below), whose sum is σ = 43446248776. Its totient is φ = 11209508352.

The previous prime is 22421443493. The next prime is 22421443543. The reversal of 22421443504 is 40534412422.

It is a super-2 number, since 2×22421443504² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87232 + ... + 229024.

Almost surely, 2^22421443504 is an apocalyptic number.

It is an amenable number.

22421443504 is a deficient number, since it is larger than the sum of its proper divisors (21024805272).

22421443504 is a wasteful number, since it uses less digits than its factorization.

22421443504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151684 (or 151678 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 22421443504 its reverse (40534412422), we get a palindrome (62955855926).

The spelling of 22421443504 in words is "twenty-two billion, four hundred twenty-one million, four hundred forty-three thousand, five hundred four".