1222440442 has 8 divisors (see below), whose sum is σ = 1868258196. Its totient is φ = 599687712.

The previous prime is 1222440413. The next prime is 1222440467. The reversal of 1222440442 is 2440442221.

It can be written as a sum of positive squares in 2 ways, for example, as 1222271521 + 168921 = 34961^2 + 411^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5766123 + ... + 5766334.

Almost surely, 2^1222440442 is an apocalyptic number.

1222440442 is a deficient number, since it is larger than the sum of its proper divisors (645817754).

1222440442 is a wasteful number, since it uses less digits than its factorization.

1222440442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11532512.

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 1222440442 is about 34963.4157656256. The cubic root of 1222440442 is about 1069.2417377964.

Adding to 1222440442 its reverse (2440442221), we get a palindrome (3662882663).

The spelling of 1222440442 in words is "one billion, two hundred twenty-two million, four hundred forty thousand, four hundred forty-two".