121596211 has 4 divisors (see below), whose sum is σ = 132650424. Its totient is φ = 110542000.

The previous prime is 121596203. The next prime is 121596221. The reversal of 121596211 is 112695121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121596211 - 2³ = 121596203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121596211.

It is not an unprimeable number, because it can be changed into a prime (121596221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5527090 + ... + 5527111.

It is an arithmetic number, because the mean of its divisors is an integer number (33162606).

Almost surely, 2^121596211 is an apocalyptic number.

121596211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121596211 is a deficient number, since it is larger than the sum of its proper divisors (11054213).

121596211 is a wasteful number, since it uses less digits than its factorization.

121596211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11054212.

The product of its digits is 1080, while the sum is 28.

The square root of 121596211 is about 11027.0671984894. The cubic root of 121596211 is about 495.4197860610.

The spelling of 121596211 in words is "one hundred twenty-one million, five hundred ninety-six thousand, two hundred eleven".