121111112201199 has 16 divisors (see below), whose sum is σ = 169980742454400. Its totient is φ = 76491123412896.

The previous prime is 121111112201159. The next prime is 121111112201329. The reversal of 121111112201199 is 991102211111121.

It is not a de Polignac number, because 121111112201199 - 2¹³ = 121111112193007 is a prime.

It is a super-2 number, since 2×121111112201199² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121111112201129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75391537 + ... + 76981205.

It is an arithmetic number, because the mean of its divisors is an integer number (10623796403400).

Almost surely, 2^{121111112201199} is an apocalyptic number.

121111112201199 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

121111112201199 is a deficient number, since it is larger than the sum of its proper divisors (48869630253201).

121111112201199 is a wasteful number, since it uses less digits than its factorization.

121111112201199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2926294.

The product of its (nonzero) digits is 648, while the sum is 33.

The spelling of 121111112201199 in words is "one hundred twenty-one trillion, one hundred eleven billion, one hundred twelve million, two hundred one thousand, one hundred ninety-nine".