22044442520 has 16 divisors (see below), whose sum is σ = 49599995760. Its totient is φ = 8817776992.

The previous prime is 22044442517. The next prime is 22044442531. The reversal of 22044442520 is 2524444022.

It is a congruent number.

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, 275555492 + ... + 275555571.

It is an arithmetic number, because the mean of its divisors is an integer number (3099999735).

Almost surely, 2^22044442520 is an apocalyptic number.

22044442520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22044442520 is an abundant number, since it is smaller than the sum of its proper divisors (27555553240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22044442520 is a wasteful number, since it uses less digits than its factorization.

22044442520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551111074 (or 551111070 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 29.

Adding to 22044442520 its reverse (2524444022), we get a palindrome (24568886542).

The spelling of 22044442520 in words is "twenty-two billion, forty-four million, four hundred forty-two thousand, five hundred twenty".