210010100112221 has 4 divisors (see below), whose sum is σ = 210010130535744. Its totient is φ = 210010069688700.

The previous prime is 210010100112199. The next prime is 210010100112227. The reversal of 210010100112221 is 122211001010012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 210010100112221 - 2⁶ = 210010100112157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210010100112196 and 210010100112205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210010100112227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 668876 + ... + 20505306.

It is an arithmetic number, because the mean of its divisors is an integer number (52502532633936).

Almost surely, 2^{210010100112221} is an apocalyptic number.

It is an amenable number.

210010100112221 is a deficient number, since it is larger than the sum of its proper divisors (30423523).

210010100112221 is a wasteful number, since it uses less digits than its factorization.

210010100112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30423522.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 210010100112221 its reverse (122211001010012), we get a palindrome (332221101122233).

The spelling of 210010100112221 in words is "two hundred ten trillion, ten billion, one hundred million, one hundred twelve thousand, two hundred twenty-one".