221002200120210 has 16 divisors (see below), whose sum is σ = 530405280288576. Its totient is φ = 58933920032048.

The previous prime is 221002200120209. The next prime is 221002200120217. The reversal of 221002200120210 is 12021002200122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 221002200120210.

It is not an unprimeable number, because it can be changed into a prime (221002200120217) 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, 3683370001974 + ... + 3683370002033.

It is an arithmetic number, because the mean of its divisors is an integer number (33150330018036).

Almost surely, 2^{221002200120210} is an apocalyptic number.

221002200120210 is an abundant number, since it is smaller than the sum of its proper divisors (309403080168366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221002200120210 is a wasteful number, since it uses less digits than its factorization.

221002200120210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7366740004017.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221002200120210 its reverse (12021002200122), we get a palindrome (233023202320332).

The spelling of 221002200120210 in words is "two hundred twenty-one trillion, two billion, two hundred million, one hundred twenty thousand, two hundred ten".