100120222211212 has 24 divisors (see below), whose sum is σ = 200240689049856. Its totient is φ = 42908614241808.

The previous prime is 100120222211209. The next prime is 100120222211213. The reversal of 100120222211212 is 212112222021001.

It is a super-3 number, since 3×100120222211212³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100120222211212.

It is not an unprimeable number, because it can be changed into a prime (100120222211213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28911123 + ... + 32188405.

It is an arithmetic number, because the mean of its divisors is an integer number (8343362043744).

Almost surely, 2^{100120222211212} is an apocalyptic number.

It is an amenable number.

100120222211212 is an abundant number, since it is smaller than the sum of its proper divisors (100120466838644).

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

100120222211212 is a wasteful number, since it uses less digits than its factorization.

100120222211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4368357 (or 4368355 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 100120222211212 its reverse (212112222021001), we get a palindrome (312232444232213).

The spelling of 100120222211212 in words is "one hundred trillion, one hundred twenty billion, two hundred twenty-two million, two hundred eleven thousand, two hundred twelve".