210112210221 has 8 divisors (see below), whose sum is σ = 280154132544. Its totient is φ = 140072547360.

The previous prime is 210112210211. The next prime is 210112210229. The reversal of 210112210221 is 122012211012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 210112210221 - 2²¹ = 210110113069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210112210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210112210229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334456 + ... + 729441.

It is an arithmetic number, because the mean of its divisors is an integer number (35019266568).

Almost surely, 2^210112210221 is an apocalyptic number.

It is an amenable number.

210112210221 is a deficient number, since it is larger than the sum of its proper divisors (70041922323).

210112210221 is a wasteful number, since it uses less digits than its factorization.

210112210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129731.

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

Adding to 210112210221 its reverse (122012211012), we get a palindrome (332124421233).

The spelling of 210112210221 in words is "two hundred ten billion, one hundred twelve million, two hundred ten thousand, two hundred twenty-one".