1220202433 has 2 divisors, whose sum is σ = 1220202434. Its totient is φ = 1220202432.

The previous prime is 1220202397. The next prime is 1220202449. The reversal of 1220202433 is 3342020221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 759112704 + 461089729 = 27552^2 + 21473^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220202433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1220202433.

It is not a weakly prime, because it can be changed into another prime (1220202833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610101216 + 610101217.

It is an arithmetic number, because the mean of its divisors is an integer number (610101217).

Almost surely, 2^1220202433 is an apocalyptic number.

It is an amenable number.

1220202433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220202433 is an equidigital number, since it uses as much as digits as its factorization.

1220202433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1220202433 is about 34931.3960929133. The cubic root of 1220202433 is about 1068.5888267926.

Adding to 1220202433 its reverse (3342020221), we get a palindrome (4562222654).

The spelling of 1220202433 in words is "one billion, two hundred twenty million, two hundred two thousand, four hundred thirty-three".