100112220221212 has 24 divisors (see below), whose sum is σ = 175371035962752. Its totient is φ = 50006231870400.

The previous prime is 100112220221197. The next prime is 100112220221213. The reversal of 100112220221212 is 212122022211001.

It is a self number, because there is not a number n which added to its sum of digits gives 100112220221212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100112220221213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15542037 + ... + 21018547.

It is an arithmetic number, because the mean of its divisors is an integer number (7307126498448).

Almost surely, 2^{100112220221212} is an apocalyptic number.

It is an amenable number.

100112220221212 is a deficient number, since it is larger than the sum of its proper divisors (75258815741540).

100112220221212 is a wasteful number, since it uses less digits than its factorization.

100112220221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5481069 (or 5481067 counting only the distinct ones).

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

Adding to 100112220221212 its reverse (212122022211001), we get a palindrome (312234242432213).

The spelling of 100112220221212 in words is "one hundred trillion, one hundred twelve billion, two hundred twenty million, two hundred twenty-one thousand, two hundred twelve".