100120011111212 has 24 divisors (see below), whose sum is σ = 178186426084800. Its totient is φ = 49209667899536.

The previous prime is 100120011111193. The next prime is 100120011111227. The reversal of 100120011111212 is 212111110021001.

It is an unprimeable number.

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, 1772558 + ... + 14261205.

It is an arithmetic number, because the mean of its divisors is an integer number (7424434420200).

Almost surely, 2^{100120011111212} is an apocalyptic number.

It is an amenable number.

100120011111212 is a deficient number, since it is larger than the sum of its proper divisors (78066414973588).

100120011111212 is a wasteful number, since it uses less digits than its factorization.

100120011111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16060285 (or 16060283 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 100120011111212 its reverse (212111110021001), we get a palindrome (312231121132213).

The spelling of 100120011111212 in words is "one hundred trillion, one hundred twenty billion, eleven million, one hundred eleven thousand, two hundred twelve".