221021110200210 has 16 divisors (see below), whose sum is σ = 530450664480576. Its totient is φ = 58938962720048.

The previous prime is 221021110200157. The next prime is 221021110200221. The reversal of 221021110200210 is 12002011120122.

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 221021110200210.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3683685169974 + ... + 3683685170033.

It is an arithmetic number, because the mean of its divisors is an integer number (33153166530036).

Almost surely, 2^{221021110200210} is an apocalyptic number.

221021110200210 is an abundant number, since it is smaller than the sum of its proper divisors (309429554280366).

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

221021110200210 is a wasteful number, since it uses less digits than its factorization.

221021110200210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7367370340017.

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

Adding to 221021110200210 its reverse (12002011120122), we get a palindrome (233023121320332).

The spelling of 221021110200210 in words is "two hundred twenty-one trillion, twenty-one billion, one hundred ten million, two hundred thousand, two hundred ten".