2020001211220 has 192 divisors, whose sum is σ = 4672044437760. Its totient is φ = 730211328000.

The previous prime is 2020001211209. The next prime is 2020001211229. The reversal of 2020001211220 is 221121000202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2020001211220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020001211229) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1921979695 + ... + 1921980745.

It is an arithmetic number, because the mean of its divisors is an integer number (24333564780).

Almost surely, 2^{2020001211220} is an apocalyptic number.

2020001211220 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 2020001211220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2336022218880).

2020001211220 is an abundant number, since it is smaller than the sum of its proper divisors (2652043226540).

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

2020001211220 is a wasteful number, since it uses less digits than its factorization.

2020001211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994 (or 1992 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2020001211220 its reverse (221121000202), we get a palindrome (2241122211422).

The spelling of 2020001211220 in words is "two trillion, twenty billion, one million, two hundred eleven thousand, two hundred twenty".