121162211 has 2 divisors, whose sum is σ = 121162212. Its totient is φ = 121162210.

The previous prime is 121162207. The next prime is 121162231. The reversal of 121162211 is 112261121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121162211 - 2² = 121162207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121162211.

It is not a weakly prime, because it can be changed into another prime (121162231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60581105 + 60581106.

It is an arithmetic number, because the mean of its divisors is an integer number (60581106).

Almost surely, 2^121162211 is an apocalyptic number.

121162211 is a deficient number, since it is larger than the sum of its proper divisors (1).

121162211 is an equidigital number, since it uses as much as digits as its factorization.

121162211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48, while the sum is 17.

The square root of 121162211 is about 11007.3707578150. The cubic root of 121162211 is about 494.8296676128.

The spelling of 121162211 in words is "one hundred twenty-one million, one hundred sixty-two thousand, two hundred eleven".