1220222533 has 2 divisors, whose sum is σ = 1220222534. Its totient is φ = 1220222532.

The previous prime is 1220222459. The next prime is 1220222557. The reversal of 1220222533 is 3352220221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1121379169 + 98843364 = 33487^2 + 9942^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220222533 - 2¹⁷ = 1220091461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220252533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610111266 + 610111267.

It is an arithmetic number, because the mean of its divisors is an integer number (610111267).

Almost surely, 2^1220222533 is an apocalyptic number.

It is an amenable number.

1220222533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220222533 is an equidigital number, since it uses as much as digits as its factorization.

1220222533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1220222533 is about 34931.6837985231. The cubic root of 1220222533 is about 1068.5946942665.

Adding to 1220222533 its reverse (3352220221), we get a palindrome (4572442754).

The spelling of 1220222533 in words is "one billion, two hundred twenty million, two hundred twenty-two thousand, five hundred thirty-three".