210300022221 has 32 divisors (see below), whose sum is σ = 294406963200. Its totient is φ = 133274279424.

The previous prime is 210300022217. The next prime is 210300022241. The reversal of 210300022221 is 122220003012.

It is a happy number.

It is not a de Polignac number, because 210300022221 - 2² = 210300022217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210300022221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210300022241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9205405 + ... + 9228221.

It is an arithmetic number, because the mean of its divisors is an integer number (9200217600).

Almost surely, 2^210300022221 is an apocalyptic number.

It is an amenable number.

210300022221 is a deficient number, since it is larger than the sum of its proper divisors (84106940979).

210300022221 is a wasteful number, since it uses less digits than its factorization.

210300022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23665.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 210300022221 its reverse (122220003012), we get a palindrome (332520025233).

The spelling of 210300022221 in words is "two hundred ten billion, three hundred million, twenty-two thousand, two hundred twenty-one".