100111220222012 has 12 divisors (see below), whose sum is σ = 175317751797216. Its totient is φ = 50020433994240.

The previous prime is 100111220222011. The next prime is 100111220222051. The reversal of 100111220222012 is 210222022111001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100111220222011) 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 3 ways as a sum of consecutive naturals, for example, 8794022789 + ... + 8794034172.

It is an arithmetic number, because the mean of its divisors is an integer number (14609812649768).

Almost surely, 2^{100111220222012} is an apocalyptic number.

It is an amenable number.

100111220222012 is a deficient number, since it is larger than the sum of its proper divisors (75206531575204).

100111220222012 is a wasteful number, since it uses less digits than its factorization.

100111220222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17588058388 (or 17588058386 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 100111220222012 its reverse (210222022111001), we get a palindrome (310333242333013).

The spelling of 100111220222012 in words is "one hundred trillion, one hundred eleven billion, two hundred twenty million, two hundred twenty-two thousand, twelve".