20221020000000 has 432 divisors, whose sum is σ = 72878194290720. Its totient is φ = 5392224000000.

The previous prime is 20221019999993. The next prime is 20221020000043. The reversal of 20221020000000 is 2012202.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 179943831 + ... + 180056169.

Almost surely, 2^{20221020000000} is an apocalyptic number.

20221020000000 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 20221020000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36439097145360).

20221020000000 is an abundant number, since it is smaller than the sum of its proper divisors (52657174290720).

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

20221020000000 is an frugal number, since it uses more digits than its factorization.

20221020000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112396 (or 112349 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20221020000000 its reverse (2012202), we get a palindrome (20221022012202).

The spelling of 20221020000000 in words is "twenty trillion, two hundred twenty-one billion, twenty million", and thus it is an aban number.