1222002021112 has 256 divisors, whose sum is σ = 2597837184000. Its totient is φ = 536481792000.

The previous prime is 1222002021101. The next prime is 1222002021113. The reversal of 1222002021112 is 2111202002221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222002021113) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2117854168 + ... + 2117854744.

It is an arithmetic number, because the mean of its divisors is an integer number (10147801500).

Almost surely, 2^{1222002021112} is an apocalyptic number.

It is an amenable number.

1222002021112 is an abundant number, since it is smaller than the sum of its proper divisors (1375835162888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222002021112 is a wasteful number, since it uses less digits than its factorization.

1222002021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 866 counting only the distinct ones).

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

Adding to 1222002021112 its reverse (2111202002221), we get a palindrome (3333204023333).

The spelling of 1222002021112 in words is "one trillion, two hundred twenty-two billion, two million, twenty-one thousand, one hundred twelve".