121121012199 has 8 divisors (see below), whose sum is σ = 176176017792. Its totient is φ = 73406674040.

The previous prime is 121121012141. The next prime is 121121012209. The reversal of 121121012199 is 991210121121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121121012199 - 2¹⁵ = 121120979431 is a prime.

It is a super-2 number, since 2×121121012199² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121121013199) 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, 1835166819 + ... + 1835166884.

It is an arithmetic number, because the mean of its divisors is an integer number (22022002224).

Almost surely, 2^121121012199 is an apocalyptic number.

121121012199 is a deficient number, since it is larger than the sum of its proper divisors (55055005593).

121121012199 is a wasteful number, since it uses less digits than its factorization.

121121012199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3670333717.

The product of its (nonzero) digits is 648, while the sum is 30.

The spelling of 121121012199 in words is "one hundred twenty-one billion, one hundred twenty-one million, twelve thousand, one hundred ninety-nine".