1201222102012 has 24 divisors (see below), whose sum is σ = 2109380232960. Its totient is φ = 598543733760.

The previous prime is 1201222101941. The next prime is 1201222102021. The reversal of 1201222102012 is 2102012221021.

It is a happy number.

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, 2634564 + ... + 3056692.

It is an arithmetic number, because the mean of its divisors is an integer number (87890843040).

Almost surely, 2^{1201222102012} is an apocalyptic number.

It is an amenable number.

1201222102012 is a deficient number, since it is larger than the sum of its proper divisors (908158130948).

1201222102012 is a wasteful number, since it uses less digits than its factorization.

1201222102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424581 (or 424579 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1201222102012 its reverse (2102012221021), we get a palindrome (3303234323033).

The spelling of 1201222102012 in words is "one trillion, two hundred one billion, two hundred twenty-two million, one hundred two thousand, twelve".