22003421144 has 32 divisors (see below), whose sum is σ = 42227721120. Its totient is φ = 10745623296.

The previous prime is 22003421137. The next prime is 22003421179. The reversal of 22003421144 is 44112430022.

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, 122747 + ... + 243050.

It is an arithmetic number, because the mean of its divisors is an integer number (1319616285).

Almost surely, 2^22003421144 is an apocalyptic number.

It is an amenable number.

22003421144 is a deficient number, since it is larger than the sum of its proper divisors (20224299976).

22003421144 is a wasteful number, since it uses less digits than its factorization.

22003421144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365979 (or 365975 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 22003421144 its reverse (44112430022), we get a palindrome (66115851166).

The spelling of 22003421144 in words is "twenty-two billion, three million, four hundred twenty-one thousand, one hundred forty-four".