1223402241 has 4 divisors (see below), whose sum is σ = 1631202992. Its totient is φ = 815601492.

The previous prime is 1223402237. The next prime is 1223402273. The reversal of 1223402241 is 1422043221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1223402241 - 2² = 1223402237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223402231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203900371 + ... + 203900376.

It is an arithmetic number, because the mean of its divisors is an integer number (407800748).

Almost surely, 2^1223402241 is an apocalyptic number.

It is an amenable number.

1223402241 is a deficient number, since it is larger than the sum of its proper divisors (407800751).

1223402241 is an equidigital number, since it uses as much as digits as its factorization.

1223402241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407800750.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1223402241 is about 34977.1674239067. The cubic root of 1223402241 is about 1069.5220857538.

Adding to 1223402241 its reverse (1422043221), we get a palindrome (2645445462).

The spelling of 1223402241 in words is "one billion, two hundred twenty-three million, four hundred two thousand, two hundred forty-one".