1222011242 has 8 divisors (see below), whose sum is σ = 1833178500. Its totient is φ = 610951744.

The previous prime is 1222011223. The next prime is 1222011257. The reversal of 1222011242 is 2421102221.

It can be written as a sum of positive squares in 2 ways, for example, as 828345961 + 393665281 = 28781^2 + 19841^2 .

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

It is a super-2 number, since 2×1222011242² = 2986622951148765128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1222011242.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13634 + ... + 51282.

Almost surely, 2^1222011242 is an apocalyptic number.

1222011242 is a deficient number, since it is larger than the sum of its proper divisors (611167258).

1222011242 is a wasteful number, since it uses less digits than its factorization.

1222011242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53880.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1222011242 is about 34957.2773825423. The cubic root of 1222011242 is about 1069.1165858851.

Adding to 1222011242 its reverse (2421102221), we get a palindrome (3643113463).

The spelling of 1222011242 in words is "one billion, two hundred twenty-two million, eleven thousand, two hundred forty-two".