100222001221012 has 48 divisors (see below), whose sum is σ = 192675022106112. Its totient is φ = 45236934103680.

The previous prime is 100222001220821. The next prime is 100222001221021. The reversal of 100222001221012 is 210122100222001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8968903 + ... + 16759630.

It is an arithmetic number, because the mean of its divisors is an integer number (4014062960544).

Almost surely, 2^{100222001221012} is an apocalyptic number.

It is an amenable number.

100222001221012 is a deficient number, since it is larger than the sum of its proper divisors (92453020885100).

100222001221012 is a wasteful number, since it uses less digits than its factorization.

100222001221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25729168 (or 25729166 counting only the distinct ones).

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

Adding to 100222001221012 its reverse (210122100222001), we get a palindrome (310344101443013).

The spelling of 100222001221012 in words is "one hundred trillion, two hundred twenty-two billion, one million, two hundred twenty-one thousand, twelve".