10020100200021 has 24 divisors (see below), whose sum is σ = 15358591728480. Its totient is φ = 6524716402512.

The previous prime is 10020100199903. The next prime is 10020100200049. The reversal of 10020100200021 is 12000200102001.

10020100200021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10020100200021 - 2¹¹ = 10020100197973 is a prime.

It is a super-3 number, since 3×10020100200021³ (a number of 40 digits) contains 333 as substring.

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 = 10020100199976 and 10020100200012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020100201021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 479466066 + ... + 479486963.

It is an arithmetic number, because the mean of its divisors is an integer number (639941322020).

Almost surely, 2^{10020100200021} is an apocalyptic number.

It is an amenable number.

10020100200021 is a deficient number, since it is larger than the sum of its proper divisors (5338491528459).

10020100200021 is an frugal number, since it uses more digits than its factorization.

10020100200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958953087 (or 958953075 counting only the distinct ones).

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

Adding to 10020100200021 its reverse (12000200102001), we get a palindrome (22020300302022).

The spelling of 10020100200021 in words is "ten trillion, twenty billion, one hundred million, two hundred thousand, twenty-one".