1222290733 has 8 divisors (see below), whose sum is σ = 1243253016. Its totient is φ = 1201358400.

The previous prime is 1222290731. The next prime is 1222290763. The reversal of 1222290733 is 3370922221.

It can be written as a sum of positive squares in 4 ways, for example, as 358988809 + 863301924 = 18947^2 + 29382^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1222290733 - 2¹ = 1222290731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222290695 and 1222290704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222290731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84363 + ... + 97783.

It is an arithmetic number, because the mean of its divisors is an integer number (155406627).

Almost surely, 2^1222290733 is an apocalyptic number.

It is an amenable number.

1222290733 is a deficient number, since it is larger than the sum of its proper divisors (20962283).

1222290733 is a wasteful number, since it uses less digits than its factorization.

1222290733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14975.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 1222290733 is about 34961.2747622280. The cubic root of 1222290733 is about 1069.1980869591.

The spelling of 1222290733 in words is "one billion, two hundred twenty-two million, two hundred ninety thousand, seven hundred thirty-three".