1222121102012 has 24 divisors (see below), whose sum is σ = 2140347175680. Its totient is φ = 610593464880.

The previous prime is 1222121101987. The next prime is 1222121102051. The reversal of 1222121102012 is 2102011212221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56207039 + ... + 56228777.

It is an arithmetic number, because the mean of its divisors is an integer number (89181132320).

Almost surely, 2^{1222121102012} is an apocalyptic number.

It is an amenable number.

1222121102012 is a deficient number, since it is larger than the sum of its proper divisors (918226073668).

1222121102012 is a wasteful number, since it uses less digits than its factorization.

1222121102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31841 (or 31839 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1222121102012 its reverse (2102011212221), we get a palindrome (3324132314233).

The spelling of 1222121102012 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred two thousand, twelve".