1220000233 has 2 divisors, whose sum is σ = 1220000234. Its totient is φ = 1220000232.

The previous prime is 1220000231. The next prime is 1220000261. The reversal of 1220000233 is 3320000221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 659873344 + 560126889 = 25688^2 + 23667^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220000233 - 2¹ = 1220000231 is a prime.

Together with 1220000231, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1220000231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610000116 + 610000117.

It is an arithmetic number, because the mean of its divisors is an integer number (610000117).

Almost surely, 2^1220000233 is an apocalyptic number.

It is an amenable number.

1220000233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220000233 is an equidigital number, since it uses as much as digits as its factorization.

1220000233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 1220000233 is about 34928.5017285311. The cubic root of 1220000233 is about 1068.5297981728.

Adding to 1220000233 its reverse (3320000221), we get a palindrome (4540000454).

The spelling of 1220000233 in words is "one billion, two hundred twenty million, two hundred thirty-three", and thus it is an aban number.