121111200100122 has 16 divisors (see below), whose sum is σ = 243439598193600. Its totient is φ = 40167533701152.

The previous prime is 121111200100091. The next prime is 121111200100123. The reversal of 121111200100122 is 221001002111121.

It is a happy number.

121111200100122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×121111200100122² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121111200100123) 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, 50716581763 + ... + 50716584150.

It is an arithmetic number, because the mean of its divisors is an integer number (15214974887100).

Almost surely, 2^{121111200100122} is an apocalyptic number.

121111200100122 is an abundant number, since it is smaller than the sum of its proper divisors (122328398093478).

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

121111200100122 is a wasteful number, since it uses less digits than its factorization.

121111200100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101433166117.

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

Adding to 121111200100122 its reverse (221001002111121), we get a palindrome (342112202211243).

The spelling of 121111200100122 in words is "one hundred twenty-one trillion, one hundred eleven billion, two hundred million, one hundred thousand, one hundred twenty-two".