121120211 has 8 divisors (see below), whose sum is σ = 127662480. Its totient is φ = 114735712.

The previous prime is 121120199. The next prime is 121120229. The reversal of 121120211 is 112021121.

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 121120211 - 2⁶ = 121120147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121120192 and 121120201.

It is not an unprimeable number, because it can be changed into a prime (121120261) 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, 37865 + ... + 40938.

It is an arithmetic number, because the mean of its divisors is an integer number (15957810).

Almost surely, 2^121120211 is an apocalyptic number.

121120211 is a deficient number, since it is larger than the sum of its proper divisors (6542269).

121120211 is an equidigital number, since it uses as much as digits as its factorization.

121120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78885.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 121120211 is about 11005.4627799107. The cubic root of 121120211 is about 494.7724846354.

Adding to 121120211 its reverse (112021121), we get a palindrome (233141332).

The spelling of 121120211 in words is "one hundred twenty-one million, one hundred twenty thousand, two hundred eleven".