2110001900020 has 384 divisors, whose sum is σ = 5635768320000. Its totient is φ = 647370662400.

The previous prime is 2110001899987. The next prime is 2110001900117. The reversal of 2110001900020 is 200091000112.

It is a super-3 number, since 3×2110001900020³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2110001899967 and 2110001900003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 603028231 + ... + 603031729.

It is an arithmetic number, because the mean of its divisors is an integer number (14676480000).

Almost surely, 2^{2110001900020} is an apocalyptic number.

2110001900020 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 2110001900020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2817884160000).

2110001900020 is an abundant number, since it is smaller than the sum of its proper divisors (3525766419980).

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

2110001900020 is a wasteful number, since it uses less digits than its factorization.

2110001900020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3739 (or 3737 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 2110001900020 its reverse (200091000112), we get a palindrome (2310092900132).

The spelling of 2110001900020 in words is "two trillion, one hundred ten billion, one million, nine hundred thousand, twenty".