121140211 has 2 divisors, whose sum is σ = 121140212. Its totient is φ = 121140210.

The previous prime is 121140193. The next prime is 121140233. The reversal of 121140211 is 112041121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121140211 - 2¹⁹ = 120615923 is a prime.

It is a super-3 number, since 3×121140211³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 121140191 and 121140200.

It is not a weakly prime, because it can be changed into another prime (121140611) 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, 60570105 + 60570106.

It is an arithmetic number, because the mean of its divisors is an integer number (60570106).

Almost surely, 2^121140211 is an apocalyptic number.

121140211 is a deficient number, since it is larger than the sum of its proper divisors (1).

121140211 is an equidigital number, since it uses as much as digits as its factorization.

121140211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 121140211 is about 11006.3713820678. The cubic root of 121140211 is about 494.7997162730.

Adding to 121140211 its reverse (112041121), we get a palindrome (233181332).

The spelling of 121140211 in words is "one hundred twenty-one million, one hundred forty thousand, two hundred eleven".