1222222202112 has 72 divisors (see below), whose sum is σ = 3394323664704. Its totient is φ = 389694029824.

The previous prime is 1222222202087. The next prime is 1222222202147. The reversal of 1222222202112 is 2112022222221.

It is a super-2 number, since 2×1222222202112² (a number of 25 digits) contains 22 as substring.

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, 34578753 + ... + 34614080.

It is an arithmetic number, because the mean of its divisors is an integer number (47143384232).

Almost surely, 2^{1222222202112} is an apocalyptic number.

1222222202112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222222202112 is an abundant number, since it is smaller than the sum of its proper divisors (2172101462592).

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

1222222202112 is an equidigital number, since it uses as much as digits as its factorization.

1222222202112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69192875 (or 69192861 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 1222222202112 its reverse (2112022222221), we get a palindrome (3334244424333).

The spelling of 1222222202112 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-two million, two hundred two thousand, one hundred twelve".