1002022212122 has 32 divisors (see below), whose sum is σ = 1621921190400. Its totient is φ = 462515392768.

The previous prime is 1002022212091. The next prime is 1002022212143. The reversal of 1002022212122 is 2212122202001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1002022212122.

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 15 ways as a sum of consecutive naturals, for example, 6626879 + ... + 6776397.

It is an arithmetic number, because the mean of its divisors is an integer number (50685037200).

Almost surely, 2^{1002022212122} is an apocalyptic number.

1002022212122 is a deficient number, since it is larger than the sum of its proper divisors (619898978278).

1002022212122 is a wasteful number, since it uses less digits than its factorization.

1002022212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153310.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1002022212122 its reverse (2212122202001), we get a palindrome (3214144414123).

The spelling of 1002022212122 in words is "one trillion, two billion, twenty-two million, two hundred twelve thousand, one hundred twenty-two".