1002100221212 has 24 divisors (see below), whose sum is σ = 1862690319504. Its totient is φ = 470088941312.

The previous prime is 1002100221107. The next prime is 1002100221289. The reversal of 1002100221212 is 2121220012001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23222558 + ... + 23265669.

It is an arithmetic number, because the mean of its divisors is an integer number (77612096646).

Almost surely, 2^{1002100221212} is an apocalyptic number.

It is an amenable number.

1002100221212 is a deficient number, since it is larger than the sum of its proper divisors (860590098292).

1002100221212 is a wasteful number, since it uses less digits than its factorization.

1002100221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46488565 (or 46488563 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1002100221212 its reverse (2121220012001), we get a palindrome (3123320233213).

The spelling of 1002100221212 in words is "one trillion, two billion, one hundred million, two hundred twenty-one thousand, two hundred twelve".