2002020021000 has 192 divisors, whose sum is σ = 6985113408000. Its totient is φ = 516650256000.

The previous prime is 2002020020981. The next prime is 2002020021019. The reversal of 2002020021000 is 1200202002.

It is an interprime number because it is at equal distance from previous prime (2002020020981) and next prime (2002020021019).

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

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, 3308850 + ... + 3866849.

It is an arithmetic number, because the mean of its divisors is an integer number (36380799000).

Almost surely, 2^{2002020021000} is an apocalyptic number.

2002020021000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002020021000 is an abundant number, since it is smaller than the sum of its proper divisors (4983093387000).

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

2002020021000 is a wasteful number, since it uses less digits than its factorization.

2002020021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7175757 (or 7175740 counting only the distinct ones).

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

Adding to 2002020021000 its reverse (1200202002), we get a palindrome (2003220223002).

The spelling of 2002020021000 in words is "two trillion, two billion, twenty million, twenty-one thousand".