210021213130223 has 16 divisors (see below), whose sum is σ = 232015260111360. Its totient is φ = 188510722545600.

The previous prime is 210021213130133. The next prime is 210021213130243. The reversal of 210021213130223 is 322031312120012.

It is a cyclic number.

It is not a de Polignac number, because 210021213130223 - 2¹⁸ = 210021212868079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210021213130243) 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, 278155736 + ... + 278909762.

It is an arithmetic number, because the mean of its divisors is an integer number (14500953756960).

Almost surely, 2^{210021213130223} is an apocalyptic number.

210021213130223 is a deficient number, since it is larger than the sum of its proper divisors (21994046981137).

210021213130223 is a wasteful number, since it uses less digits than its factorization.

210021213130223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074638.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 210021213130223 its reverse (322031312120012), we get a palindrome (532052525250235).

The spelling of 210021213130223 in words is "two hundred ten trillion, twenty-one billion, two hundred thirteen million, one hundred thirty thousand, two hundred twenty-three".