1220221002233 has 2 divisors, whose sum is σ = 1220221002234. Its totient is φ = 1220221002232.

The previous prime is 1220221002211. The next prime is 1220221002257. The reversal of 1220221002233 is 3322001220221.

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., 1216811960464 + 3409041769 = 1103092^2 + 58387^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220221002233 - 2⁸ = 1220221001977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1220221002283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610110501116 + 610110501117.

It is an arithmetic number, because the mean of its divisors is an integer number (610110501117).

Almost surely, 2^{1220221002233} is an apocalyptic number.

It is an amenable number.

1220221002233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220221002233 is an equidigital number, since it uses as much as digits as its factorization.

1220221002233 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 20.

Adding to 1220221002233 its reverse (3322001220221), we get a palindrome (4542222222454).

The spelling of 1220221002233 in words is "one trillion, two hundred twenty billion, two hundred twenty-one million, two thousand, two hundred thirty-three".