210212110000221 has 24 divisors (see below), whose sum is σ = 326046211533504. Its totient is φ = 120120122969280.

The previous prime is 210212110000199. The next prime is 210212110000271. The reversal of 210212110000221 is 122000011212012.

It is not a de Polignac number, because 210212110000221 - 2²⁷ = 210211975782493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210212110000221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210212110000271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10062256 + ... + 22840166.

It is an arithmetic number, because the mean of its divisors is an integer number (13585258813896).

Almost surely, 2^{210212110000221} is an apocalyptic number.

210212110000221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210212110000221 is a deficient number, since it is larger than the sum of its proper divisors (115834101533283).

210212110000221 is a wasteful number, since it uses less digits than its factorization.

210212110000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12889841 (or 12889834 counting only the distinct ones).

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

Adding to 210212110000221 its reverse (122000011212012), we get a palindrome (332212121212233).

The spelling of 210212110000221 in words is "two hundred ten trillion, two hundred twelve billion, one hundred ten million, two hundred twenty-one", and thus it is an aban number.