1000221220122 has 8 divisors (see below), whose sum is σ = 2000442440256. Its totient is φ = 333407073372.

The previous prime is 1000221220111. The next prime is 1000221220177. The reversal of 1000221220122 is 2210221220001.

1000221220122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

1000221220122 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83351768338 + ... + 83351768349.

It is an arithmetic number, because the mean of its divisors is an integer number (250055305032).

Almost surely, 2^{1000221220122} is an apocalyptic number.

1000221220122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1000221220122 is a wasteful number, since it uses less digits than its factorization.

1000221220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166703536692.

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

Adding to 1000221220122 its reverse (2210221220001), we get a palindrome (3210442440123).

The spelling of 1000221220122 in words is "one trillion, two hundred twenty-one million, two hundred twenty thousand, one hundred twenty-two".