20022021021120 has 224 divisors, whose sum is σ = 65057924321280. Its totient is φ = 5214265405440.

The previous prime is 20022021021061. The next prime is 20022021021137. The reversal of 20022021021120 is 2112012022002.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20022021021120.

It is a congruent number.

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, 311260321 + ... + 311324639.

Almost surely, 2^{20022021021120} is an apocalyptic number.

20022021021120 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 20022021021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32528962160640).

20022021021120 is an abundant number, since it is smaller than the sum of its proper divisors (45035903300160).

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

20022021021120 is a wasteful number, since it uses less digits than its factorization.

20022021021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71923 (or 71913 counting only the distinct ones).

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

Adding to 20022021021120 its reverse (2112012022002), we get a palindrome (22134033043122).

The spelling of 20022021021120 in words is "twenty trillion, twenty-two billion, twenty-one million, twenty-one thousand, one hundred twenty".