22021120221000 has 128 divisors (see below), whose sum is σ = 72747418498560. Its totient is φ = 5526869376000.

The previous prime is 22021120220987. The next prime is 22021120221019. The reversal of 22021120221000 is 12202112022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215842336 + ... + 215944335.

It is an arithmetic number, because the mean of its divisors is an integer number (568339207020).

Almost surely, 2^{22021120221000} is an apocalyptic number.

22021120221000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021120221000 is an abundant number, since it is smaller than the sum of its proper divisors (50726298277560).

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

22021120221000 is a wasteful number, since it uses less digits than its factorization.

22021120221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431786712 (or 431786698 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22021120221000 its reverse (12202112022), we get a palindrome (22033322333022).

The spelling of 22021120221000 in words is "twenty-two trillion, twenty-one billion, one hundred twenty million, two hundred twenty-one thousand".