1223220133 has 8 divisors (see below), whose sum is σ = 1287961920. Its totient is φ = 1158514560.

The previous prime is 1223220107. The next prime is 1223220151. The reversal of 1223220133 is 3310223221.

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-1223220133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1223220133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223220233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85941 + ... + 99157.

It is an arithmetic number, because the mean of its divisors is an integer number (160995240).

Almost surely, 2^1223220133 is an apocalyptic number.

It is an amenable number.

1223220133 is a deficient number, since it is larger than the sum of its proper divisors (64741787).

1223220133 is a wasteful number, since it uses less digits than its factorization.

1223220133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18107.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1223220133 is about 34974.5640859182. The cubic root of 1223220133 is about 1069.4690156661.

Adding to 1223220133 its reverse (3310223221), we get a palindrome (4533443354).

The spelling of 1223220133 in words is "one billion, two hundred twenty-three million, two hundred twenty thousand, one hundred thirty-three".