22001021120 has 112 divisors (see below), whose sum is σ = 59389609440. Its totient is φ = 7695876096.

The previous prime is 22001021051. The next prime is 22001021173. The reversal of 22001021120 is 2112010022.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60137 + ... + 218216.

It is an arithmetic number, because the mean of its divisors is an integer number (530264370).

Almost surely, 2^22001021120 is an apocalyptic number.

22001021120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22001021120 is an abundant number, since it is smaller than the sum of its proper divisors (37388588320).

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

22001021120 is a wasteful number, since it uses less digits than its factorization.

22001021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278402 (or 278392 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22001021120 its reverse (2112010022), we get a palindrome (24113031142).

The spelling of 22001021120 in words is "twenty-two billion, one million, twenty-one thousand, one hundred twenty".