1222210012112 has 40 divisors (see below), whose sum is σ = 2477509851840. Its totient is φ = 582992847360.

The previous prime is 1222210012087. The next prime is 1222210012171. The reversal of 1222210012112 is 2112100122221.

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, 4242089 + ... + 4521032.

It is an arithmetic number, because the mean of its divisors is an integer number (61937746296).

Almost surely, 2^{1222210012112} is an apocalyptic number.

It is an amenable number.

1222210012112 is an abundant number, since it is smaller than the sum of its proper divisors (1255299839728).

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

1222210012112 is a wasteful number, since it uses less digits than its factorization.

1222210012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8763531 (or 8763525 counting only the distinct ones).

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

Adding to 1222210012112 its reverse (2112100122221), we get a palindrome (3334310134333).

The spelling of 1222210012112 in words is "one trillion, two hundred twenty-two billion, two hundred ten million, twelve thousand, one hundred twelve".