121162231 has 2 divisors, whose sum is σ = 121162232. Its totient is φ = 121162230.

The previous prime is 121162211. The next prime is 121162241. The reversal of 121162231 is 132261121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121162231 is a prime.

It is a super-2 number, since 2×121162231² = 29360572441794722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 121162199 and 121162208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121162211) 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 as a sum of consecutive naturals, namely, 60581115 + 60581116.

It is an arithmetic number, because the mean of its divisors is an integer number (60581116).

Almost surely, 2^121162231 is an apocalyptic number.

121162231 is a deficient number, since it is larger than the sum of its proper divisors (1).

121162231 is an equidigital number, since it uses as much as digits as its factorization.

121162231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 19.

The square root of 121162231 is about 11007.3716662971. The cubic root of 121162231 is about 494.8296948396.

The spelling of 121162231 in words is "one hundred twenty-one million, one hundred sixty-two thousand, two hundred thirty-one".