20122021000000 has 392 divisors, whose sum is σ = 51345760265856. Its totient is φ = 7819200000000.

The previous prime is 20122020999967. The next prime is 20122021000027. The reversal of 20122021000000 is 12022102.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 11110999095 + ... + 11111000905.

Almost surely, 2^{20122021000000} is an apocalyptic number.

20122021000000 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 20122021000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25672880132928).

20122021000000 is an abundant number, since it is smaller than the sum of its proper divisors (31223739265856).

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

20122021000000 is an frugal number, since it uses more digits than its factorization.

20122021000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165 (or 2130 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20122021000000 its reverse (12022102), we get a palindrome (20122033022102).

The spelling of 20122021000000 in words is "twenty trillion, one hundred twenty-two billion, twenty-one million", and thus it is an aban number.