1222111001212 has 12 divisors (see below), whose sum is σ = 2139028624600. Its totient is φ = 610959965616.

The previous prime is 1222111001119. The next prime is 1222111001269. The reversal of 1222111001212 is 2121001112221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23854962 + ... + 23906137.

Almost surely, 2^{1222111001212} is an apocalyptic number.

It is an amenable number.

1222111001212 is a deficient number, since it is larger than the sum of its proper divisors (916917623388).

1222111001212 is a wasteful number, since it uses less digits than its factorization.

1222111001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47767500 (or 47767498 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1222111001212 its reverse (2121001112221), we get a palindrome (3343112113433).

The spelling of 1222111001212 in words is "one trillion, two hundred twenty-two billion, one hundred eleven million, one thousand, two hundred twelve".