1002221222122 has 16 divisors (see below), whose sum is σ = 1515451392000. Its totient is φ = 497072228688.

The previous prime is 1002221222117. The next prime is 1002221222269. The reversal of 1002221222122 is 2212221222001.

It is a self number, because there is not a number n which added to its sum of digits gives 1002221222122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1008504 + ... + 1738252.

It is an arithmetic number, because the mean of its divisors is an integer number (94715712000).

Almost surely, 2^{1002221222122} is an apocalyptic number.

1002221222122 is a deficient number, since it is larger than the sum of its proper divisors (513230169878).

1002221222122 is a wasteful number, since it uses less digits than its factorization.

1002221222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735285.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1002221222122 its reverse (2212221222001), we get a palindrome (3214442444123).

The spelling of 1002221222122 in words is "one trillion, two billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty-two".