1222022033 has 4 divisors (see below), whose sum is σ = 1293905700. Its totient is φ = 1150138368.

The previous prime is 1222022029. The next prime is 1222022047. The reversal of 1222022033 is 3302202221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3302202221 = 107 ⋅30861703.

It can be written as a sum of positive squares in 2 ways, for example, as 406748224 + 815273809 = 20168^2 + 28553^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222022033 - 2² = 1222022029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 71883649 = 1222022033 / (1 + 2 + 2 + 2 + 0 + 2 + 2 + 0 + 3 + 3).

It is not an unprimeable number, because it can be changed into a prime (1222022063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35941808 + ... + 35941841.

It is an arithmetic number, because the mean of its divisors is an integer number (323476425).

Almost surely, 2^1222022033 is an apocalyptic number.

It is an amenable number.

1222022033 is a deficient number, since it is larger than the sum of its proper divisors (71883667).

1222022033 is an equidigital number, since it uses as much as digits as its factorization.

1222022033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71883666.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1222022033 is about 34957.4317277457. The cubic root of 1222022033 is about 1069.1197328292.

Adding to 1222022033 its reverse (3302202221), we get a palindrome (4524224254).

The spelling of 1222022033 in words is "one billion, two hundred twenty-two million, twenty-two thousand, thirty-three".