1002220121212 has 6 divisors (see below), whose sum is σ = 1753885212128. Its totient is φ = 501110060604.

The previous prime is 1002220121183. The next prime is 1002220121297. The reversal of 1002220121212 is 2121210222001.

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 as a sum of consecutive naturals, namely, 125277515148 + ... + 125277515155.

Almost surely, 2^{1002220121212} is an apocalyptic number.

It is an amenable number.

1002220121212 is a deficient number, since it is larger than the sum of its proper divisors (751665090916).

1002220121212 is a wasteful number, since it uses less digits than its factorization.

1002220121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250555030307 (or 250555030305 counting only the distinct ones).

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

Adding to 1002220121212 its reverse (2121210222001), we get a palindrome (3123430343213).

The spelling of 1002220121212 in words is "one trillion, two billion, two hundred twenty million, one hundred twenty-one thousand, two hundred twelve".