1204220133 has 24 divisors (see below), whose sum is σ = 1841985600. Its totient is φ = 755987904.

The previous prime is 1204220111. The next prime is 1204220153. The reversal of 1204220133 is 3310224021.

It is a de Polignac number, because none of the positive numbers 2^k-1204220133 is a prime.

It is a super-2 number, since 2×1204220133² = 2900292257445075378, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204220153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7473 + ... + 49641.

It is an arithmetic number, because the mean of its divisors is an integer number (76749400).

Almost surely, 2^1204220133 is an apocalyptic number.

It is an amenable number.

1204220133 is a deficient number, since it is larger than the sum of its proper divisors (637765467).

1204220133 is a wasteful number, since it uses less digits than its factorization.

1204220133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42361 (or 42358 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1204220133 is about 34701.8750646129. The cubic root of 1204220133 is about 1063.9028229813.

Adding to 1204220133 its reverse (3310224021), we get a palindrome (4514444154).

The spelling of 1204220133 in words is "one billion, two hundred four million, two hundred twenty thousand, one hundred thirty-three".