22021321333120 has 128 divisors (see below), whose sum is σ = 53000461209600. Its totient is φ = 8749021747200.

The previous prime is 22021321333097. The next prime is 22021321333139. The reversal of 22021321333120 is 2133312312022.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1256987721 + ... + 1257005239.

It is an arithmetic number, because the mean of its divisors is an integer number (414066103200).

Almost surely, 2^{22021321333120} is an apocalyptic number.

22021321333120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22021321333120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26500230604800).

22021321333120 is an abundant number, since it is smaller than the sum of its proper divisors (30979139876480).

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

22021321333120 is a wasteful number, since it uses less digits than its factorization.

22021321333120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30696 (or 30684 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 22021321333120 its reverse (2133312312022), we get a palindrome (24154633645142).

The spelling of 22021321333120 in words is "twenty-two trillion, twenty-one billion, three hundred twenty-one million, three hundred thirty-three thousand, one hundred twenty".