22440221432 has 32 divisors (see below), whose sum is σ = 42274980000. Its totient is φ = 11166950400.

The previous prime is 22440221429. The next prime is 22440221443. The reversal of 22440221432 is 23412204422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5780132 + ... + 5784012.

It is an arithmetic number, because the mean of its divisors is an integer number (1321093125).

Almost surely, 2^22440221432 is an apocalyptic number.

It is an amenable number.

22440221432 is a deficient number, since it is larger than the sum of its proper divisors (19834758568).

22440221432 is a wasteful number, since it uses less digits than its factorization.

22440221432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7127 (or 7123 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 22440221432 its reverse (23412204422), we get a palindrome (45852425854).

The spelling of 22440221432 in words is "twenty-two billion, four hundred forty million, two hundred twenty-one thousand, four hundred thirty-two".