221000002210120 has 32 divisors (see below), whose sum is σ = 568285719969600. Its totient is φ = 75771429329088.

The previous prime is 221000002210087. The next prime is 221000002210147. The reversal of 221000002210120 is 21012200000122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 221000002210120.

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, 394642860810 + ... + 394642861369.

It is an arithmetic number, because the mean of its divisors is an integer number (17758928749050).

Almost surely, 2^{221000002210120} is an apocalyptic number.

221000002210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221000002210120 is an abundant number, since it is smaller than the sum of its proper divisors (347285717759480).

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

221000002210120 is a wasteful number, since it uses less digits than its factorization.

221000002210120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789285722197 (or 789285722193 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 221000002210120 its reverse (21012200000122), we get a palindrome (242012202210242).

The spelling of 221000002210120 in words is "two hundred twenty-one trillion, two million, two hundred ten thousand, one hundred twenty".