121233211 has 8 divisors (see below), whose sum is σ = 135330624. Its totient is φ = 107648520.

The previous prime is 121233199. The next prime is 121233221. The reversal of 121233211 is 112332121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121233211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121233221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127681 + ... + 128626.

It is an arithmetic number, because the mean of its divisors is an integer number (16916328).

Almost surely, 2^121233211 is an apocalyptic number.

121233211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121233211 is a deficient number, since it is larger than the sum of its proper divisors (14097413).

121233211 is a wasteful number, since it uses less digits than its factorization.

121233211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256361.

The product of its digits is 72, while the sum is 16.

The square root of 121233211 is about 11010.5953971618. The cubic root of 121233211 is about 494.9263040305.

Adding to 121233211 its reverse (112332121), we get a palindrome (233565332).

It can be divided in two parts, 121 and 233211, that added together give a palindrome (233332).

The spelling of 121233211 in words is "one hundred twenty-one million, two hundred thirty-three thousand, two hundred eleven".