100221020120212 has 12 divisors (see below), whose sum is σ = 175505050079296. Its totient is φ = 50076720097560.

The previous prime is 100221020120201. The next prime is 100221020120213. The reversal of 100221020120212 is 212021020122001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100221020120213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8447483964 + ... + 8447495827.

Almost surely, 2^{100221020120212} is an apocalyptic number.

It is an amenable number.

100221020120212 is a deficient number, since it is larger than the sum of its proper divisors (75284029959084).

100221020120212 is a wasteful number, since it uses less digits than its factorization.

100221020120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16894981278 (or 16894981276 counting only the distinct ones).

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

Adding to 100221020120212 its reverse (212021020122001), we get a palindrome (312242040242213).

The spelling of 100221020120212 in words is "one hundred trillion, two hundred twenty-one billion, twenty million, one hundred twenty thousand, two hundred twelve".