221002221000210 has 64 divisors (see below), whose sum is σ = 576751427336448. Its totient is φ = 53872386050304.

The previous prime is 221002221000179. The next prime is 221002221000217. The reversal of 221002221000210 is 12000122200122.

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 221002221000210.

It is not an unprimeable number, because it can be changed into a prime (221002221000217) 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, 2750796537 + ... + 2750876876.

It is an arithmetic number, because the mean of its divisors is an integer number (9011741052132).

Almost surely, 2^{221002221000210} is an apocalyptic number.

221002221000210 is an abundant number, since it is smaller than the sum of its proper divisors (355749206336238).

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

221002221000210 is a wasteful number, since it uses less digits than its factorization.

221002221000210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5501673539.

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

Adding to 221002221000210 its reverse (12000122200122), we get a palindrome (233002343200332).

The spelling of 221002221000210 in words is "two hundred twenty-one trillion, two billion, two hundred twenty-one million, two hundred ten", and thus it is an aban number.