210002122200221 has 64 divisors (see below), whose sum is σ = 231921279862272. Its totient is φ = 188959533514752.

The previous prime is 210002122200193. The next prime is 210002122200253. The reversal of 210002122200221 is 122002221200012.

It is a happy number.

It is not a de Polignac number, because 210002122200221 - 2¹⁴ = 210002122183837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210002122200221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210002122230221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 104843794406 + ... + 104843796408.

It is an arithmetic number, because the mean of its divisors is an integer number (3623769997848).

Almost surely, 2^{210002122200221} is an apocalyptic number.

It is an amenable number.

210002122200221 is a deficient number, since it is larger than the sum of its proper divisors (21919157662051).

210002122200221 is a wasteful number, since it uses less digits than its factorization.

210002122200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3782.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 210002122200221 its reverse (122002221200012), we get a palindrome (332004343400233).

The spelling of 210002122200221 in words is "two hundred ten trillion, two billion, one hundred twenty-two million, two hundred thousand, two hundred twenty-one".