1222101021212 has 12 divisors (see below), whose sum is σ = 2138758914600. Its totient is φ = 611027045616.

The previous prime is 1222101021131. The next prime is 1222101021217. The reversal of 1222101021212 is 2121201012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222101021217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5748803 + ... + 5957594.

It is an arithmetic number, because the mean of its divisors is an integer number (178229909550).

Almost surely, 2^{1222101021212} is an apocalyptic number.

It is an amenable number.

1222101021212 is a deficient number, since it is larger than the sum of its proper divisors (916657893388).

1222101021212 is a wasteful number, since it uses less digits than its factorization.

1222101021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11732500 (or 11732498 counting only the distinct ones).

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

Adding to 1222101021212 its reverse (2121201012221), we get a palindrome (3343302033433).

The spelling of 1222101021212 in words is "one trillion, two hundred twenty-two billion, one hundred one million, twenty-one thousand, two hundred twelve".