1000121000222 has 16 divisors (see below), whose sum is σ = 1510372548000. Its totient is φ = 496664029920.

The previous prime is 1000121000209. The next prime is 1000121000257. The reversal of 1000121000222 is 2220001210001.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3719972 + ... + 3979752.

It is an arithmetic number, because the mean of its divisors is an integer number (94398284250).

Almost surely, 2^{1000121000222} is an apocalyptic number.

1000121000222 is a deficient number, since it is larger than the sum of its proper divisors (510251547778).

1000121000222 is a wasteful number, since it uses less digits than its factorization.

1000121000222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272851.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1000121000222 its reverse (2220001210001), we get a palindrome (3220122210223).

The spelling of 1000121000222 in words is "one trillion, one hundred twenty-one million, two hundred twenty-two", and thus it is an aban number.