2101410021 has 16 divisors (see below), whose sum is σ = 2851038720. Its totient is φ = 1376388720.

The previous prime is 2101409969. The next prime is 2101410049. The reversal of 2101410021 is 1200141012.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2101410021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2101409979 and 2101410006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101410121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 530976 + ... + 534918.

It is an arithmetic number, because the mean of its divisors is an integer number (178189920).

Almost surely, 2^2101410021 is an apocalyptic number.

It is an amenable number.

2101410021 is a deficient number, since it is larger than the sum of its proper divisors (749628699).

2101410021 is a wasteful number, since it uses less digits than its factorization.

2101410021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7016.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2101410021 is about 45841.1389583636. The cubic root of 2101410021 is about 1280.8657109461.

Adding to 2101410021 its reverse (1200141012), we get a palindrome (3301551033).

The spelling of 2101410021 in words is "two billion, one hundred one million, four hundred ten thousand, twenty-one".