1222212102112 has 48 divisors (see below), whose sum is σ = 2547979256592. Its totient is φ = 575112079360.

The previous prime is 1222212102107. The next prime is 1222212102131. The reversal of 1222212102112 is 2112012122221.

It is a self number, because there is not a number n which added to its sum of digits gives 1222212102112.

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, 7167798 + ... + 7336330.

It is an arithmetic number, because the mean of its divisors is an integer number (53082901179).

Almost surely, 2^{1222212102112} is an apocalyptic number.

It is an amenable number.

1222212102112 is an abundant number, since it is smaller than the sum of its proper divisors (1325767154480).

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

1222212102112 is a wasteful number, since it uses less digits than its factorization.

1222212102112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181891 (or 181883 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1222212102112 its reverse (2112012122221), we get a palindrome (3334224224333).

The spelling of 1222212102112 in words is "one trillion, two hundred twenty-two billion, two hundred twelve million, one hundred two thousand, one hundred twelve".