221000012202210 has 64 divisors (see below), whose sum is σ = 562577773317120. Its totient is φ = 55405386728640.

The previous prime is 221000012202139. The next prime is 221000012202269. The reversal of 221000012202210 is 12202210000122.

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 221000012202210.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1479770062 + ... + 1479919401.

It is an arithmetic number, because the mean of its divisors is an integer number (8790277708080).

Almost surely, 2^{221000012202210} is an apocalyptic number.

221000012202210 is an abundant number, since it is smaller than the sum of its proper divisors (341577761114910).

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

221000012202210 is a wasteful number, since it uses less digits than its factorization.

221000012202210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959689623.

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

Adding to 221000012202210 its reverse (12202210000122), we get a palindrome (233202222202332).

The spelling of 221000012202210 in words is "two hundred twenty-one trillion, twelve million, two hundred two thousand, two hundred ten".