2000202021220 has 24 divisors (see below), whose sum is σ = 4523533802424. Its totient is φ = 738536130816.

The previous prime is 2000202021217. The next prime is 2000202021227. The reversal of 2000202021220 is 221202020002.

It can be written as a sum of positive squares in 4 ways, for example, as 370485504 + 1999831535716 = 19248^2 + 1414154^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 2000202021220.

It is not an unprimeable number, because it can be changed into a prime (2000202021227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3846542089 + ... + 3846542608.

It is an arithmetic number, because the mean of its divisors is an integer number (188480575101).

Almost surely, 2^{2000202021220} is an apocalyptic number.

2000202021220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2000202021220 is an abundant number, since it is smaller than the sum of its proper divisors (2523331781204).

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

2000202021220 is a wasteful number, since it uses less digits than its factorization.

2000202021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7693084719 (or 7693084717 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 2000202021220 its reverse (221202020002), we get a palindrome (2221404041222).

The spelling of 2000202021220 in words is "two trillion, two hundred two million, twenty-one thousand, two hundred twenty".