101201221220012 has 24 divisors (see below), whose sum is σ = 177277479274896. Its totient is φ = 50550515013888.

The previous prime is 101201221219999. The next prime is 101201221220063. The reversal of 101201221220012 is 210022122102101.

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, 206988023 + ... + 207476369.

It is an arithmetic number, because the mean of its divisors is an integer number (7386561636454).

Almost surely, 2^{101201221220012} is an apocalyptic number.

It is an amenable number.

101201221220012 is a deficient number, since it is larger than the sum of its proper divisors (76076258054884).

101201221220012 is a wasteful number, since it uses less digits than its factorization.

101201221220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539537 (or 539535 counting only the distinct ones).

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

Adding to 101201221220012 its reverse (210022122102101), we get a palindrome (311223343322113).

The spelling of 101201221220012 in words is "one hundred one trillion, two hundred one billion, two hundred twenty-one million, two hundred twenty thousand, twelve".