2110021001020 has 24 divisors (see below), whose sum is σ = 4447892189664. Its totient is φ = 840799240896.

The previous prime is 2110021000961. The next prime is 2110021001047. The reversal of 2110021001020 is 201001200112.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 2110021000988 and 2110021001006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200567079 + ... + 200577598.

It is an arithmetic number, because the mean of its divisors is an integer number (185328841236).

Almost surely, 2^{2110021001020} is an apocalyptic number.

2110021001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2110021001020 is an abundant number, since it is smaller than the sum of its proper divisors (2337871188644).

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

2110021001020 is a wasteful number, since it uses less digits than its factorization.

2110021001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401144949 (or 401144947 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2110021001020 its reverse (201001200112), we get a palindrome (2311022201132).

The spelling of 2110021001020 in words is "two trillion, one hundred ten billion, twenty-one million, one thousand, twenty".