1002221122012 has 24 divisors (see below), whose sum is σ = 1915134650352. Its totient is φ = 455125670400.

The previous prime is 1002221121971. The next prime is 1002221122081. The reversal of 1002221122012 is 2102211222001.

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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10687413 + ... + 10780780.

It is an arithmetic number, because the mean of its divisors is an integer number (79797277098).

Almost surely, 2^{1002221122012} is an apocalyptic number.

It is an amenable number.

1002221122012 is a deficient number, since it is larger than the sum of its proper divisors (912913528340).

1002221122012 is a wasteful number, since it uses less digits than its factorization.

1002221122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21469269 (or 21469267 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1002221122012 its reverse (2102211222001), we get a palindrome (3104432344013).

The spelling of 1002221122012 in words is "one trillion, two billion, two hundred twenty-one million, one hundred twenty-two thousand, twelve".