210102002211021 has 16 divisors (see below), whose sum is σ = 289707163335168. Its totient is φ = 135299124878400.

The previous prime is 210102002211001. The next prime is 210102002211077. The reversal of 210102002211021 is 120112200201012.

It is not a de Polignac number, because 210102002211021 - 2⁶ = 210102002210957 is a prime.

It is a super-2 number, since 2×210102002211021² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210102002211001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2087899146 + ... + 2087999771.

It is an arithmetic number, because the mean of its divisors is an integer number (18106697708448).

Almost surely, 2^{210102002211021} is an apocalyptic number.

It is an amenable number.

210102002211021 is a deficient number, since it is larger than the sum of its proper divisors (79605161124147).

210102002211021 is a wasteful number, since it uses less digits than its factorization.

210102002211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4175899492.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210102002211021 its reverse (120112200201012), we get a palindrome (330214202412033).

The spelling of 210102002211021 in words is "two hundred ten trillion, one hundred two billion, two million, two hundred eleven thousand, twenty-one".