1222204042 has 8 divisors (see below), whose sum is σ = 1837390500. Its totient is φ = 609740544.

The previous prime is 1222204037. The next prime is 1222204073. The reversal of 1222204042 is 2404022221.

It can be written as a sum of positive squares in 2 ways, for example, as 1222131681 + 72361 = 34959^2 + 269^2 .

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

It is a super-2 number, since 2×1222204042² = 2987565440562275528, which contains 22 as substring.

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, 679617 + ... + 681412.

Almost surely, 2^1222204042 is an apocalyptic number.

1222204042 is a deficient number, since it is larger than the sum of its proper divisors (615186458).

1222204042 is a wasteful number, since it uses less digits than its factorization.

1222204042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361480.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 1222204042 is about 34960.0349256118. The cubic root of 1222204042 is about 1069.1728087281.

Adding to 1222204042 its reverse (2404022221), we get a palindrome (3626226263).

The spelling of 1222204042 in words is "one billion, two hundred twenty-two million, two hundred four thousand, forty-two".