100221212000120 has 16 divisors (see below), whose sum is σ = 225497727000360. Its totient is φ = 40088484800032.

The previous prime is 100221212000017. The next prime is 100221212000123. The reversal of 100221212000120 is 21000212122001.

It is a junction number, because it is equal to n+sod(n) for n = 100221212000095 and 100221212000104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100221212000123) 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, 1252765149962 + ... + 1252765150041.

Almost surely, 2^{100221212000120} is an apocalyptic number.

100221212000120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100221212000120 is an abundant number, since it is smaller than the sum of its proper divisors (125276515000240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100221212000120 is a wasteful number, since it uses less digits than its factorization.

100221212000120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505530300014 (or 2505530300010 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 100221212000120 its reverse (21000212122001), we get a palindrome (121221424122121).

The spelling of 100221212000120 in words is "one hundred trillion, two hundred twenty-one billion, two hundred twelve million, one hundred twenty", and thus it is an aban number.