121233133211 has 2 divisors, whose sum is σ = 121233133212. Its totient is φ = 121233133210.

The previous prime is 121233133169. The next prime is 121233133247. The reversal of 121233133211 is 112331332121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121233133211 - 2²⁶ = 121166024347 is a prime.

It is not a weakly prime, because it can be changed into another prime (121233133711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60616566605 + 60616566606.

It is an arithmetic number, because the mean of its divisors is an integer number (60616566606).

Almost surely, 2^121233133211 is an apocalyptic number.

121233133211 is a deficient number, since it is larger than the sum of its proper divisors (1).

121233133211 is an equidigital number, since it uses as much as digits as its factorization.

121233133211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 23.

Adding to 121233133211 its reverse (112331332121), we get a palindrome (233564465332).

It can be divided in two parts, 1 and 21233133211, that added together give a palindrome (21233133212).

The spelling of 121233133211 in words is "one hundred twenty-one billion, two hundred thirty-three million, one hundred thirty-three thousand, two hundred eleven".