12111021100122 has 32 divisors (see below), whose sum is σ = 27682437934464. Its totient is φ = 3460278744000.

The previous prime is 12111021100121. The next prime is 12111021100183. The reversal of 12111021100122 is 22100112011121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12111021100121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19473372 + ... + 20085672.

It is an arithmetic number, because the mean of its divisors is an integer number (865076185452).

Almost surely, 2^{12111021100122} is an apocalyptic number.

12111021100122 is an abundant number, since it is smaller than the sum of its proper divisors (15571416834342).

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

12111021100122 is a wasteful number, since it uses less digits than its factorization.

12111021100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083254.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12111021100122 its reverse (22100112011121), we get a palindrome (34211133111243).

The spelling of 12111021100122 in words is "twelve trillion, one hundred eleven billion, twenty-one million, one hundred thousand, one hundred twenty-two".