121223833 has 2 divisors, whose sum is σ = 121223834. Its totient is φ = 121223832.

The previous prime is 121223827. The next prime is 121223887. The reversal of 121223833 is 338322121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119071744 + 2152089 = 10912^2 + 1467^2 .

It is a cyclic number.

It is not a de Polignac number, because 121223833 - 2¹³ = 121215641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121223798 and 121223807.

It is not a weakly prime, because it can be changed into another prime (121223813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60611916 + 60611917.

It is an arithmetic number, because the mean of its divisors is an integer number (60611917).

Almost surely, 2^121223833 is an apocalyptic number.

It is an amenable number.

121223833 is a deficient number, since it is larger than the sum of its proper divisors (1).

121223833 is an equidigital number, since it uses as much as digits as its factorization.

121223833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 121223833 is about 11010.1695263969. The cubic root of 121223833 is about 494.9135420199.

Adding to 121223833 its reverse (338322121), we get a palindrome (459545954).

The spelling of 121223833 in words is "one hundred twenty-one million, two hundred twenty-three thousand, eight hundred thirty-three".