2000010121020 has 72 divisors (see below), whose sum is σ = 6385997239440. Its totient is φ = 505265713920.

The previous prime is 2000010120967. The next prime is 2000010121037. The reversal of 2000010121020 is 201210100002.

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

It is a junction number, because it is equal to n+sod(n) for n = 2000010120993 and 2000010121011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 292395721 + ... + 292402560.

Almost surely, 2^{2000010121020} is an apocalyptic number.

2000010121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2000010121020 is an abundant number, since it is smaller than the sum of its proper divisors (4385987118420).

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

2000010121020 is a wasteful number, since it uses less digits than its factorization.

2000010121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584798315 (or 584798310 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 2000010121020 its reverse (201210100002), we get a palindrome (2201220221022).

The spelling of 2000010121020 in words is "two trillion, ten million, one hundred twenty-one thousand, twenty".