2021000210001 has 24 divisors (see below), whose sum is σ = 2944690844160. Its totient is φ = 1335616128000.

The previous prime is 2021000209999. The next prime is 2021000210011. The reversal of 2021000210001 is 1000120001202.

It is not a de Polignac number, because 2021000210001 - 2¹ = 2021000209999 is a prime.

It is a super-2 number, since 2×2021000210001² (a number of 25 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (2021000210011) 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, 901360 + ... + 2203281.

It is an arithmetic number, because the mean of its divisors is an integer number (122695451840).

Almost surely, 2^{2021000210001} is an apocalyptic number.

It is an amenable number.

2021000210001 is a deficient number, since it is larger than the sum of its proper divisors (923690634159).

2021000210001 is a wasteful number, since it uses less digits than its factorization.

2021000210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105277 (or 3105274 counting only the distinct ones).

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

Adding to 2021000210001 its reverse (1000120001202), we get a palindrome (3021120211203).

The spelling of 2021000210001 in words is "two trillion, twenty-one billion, two hundred ten thousand, one".