1213004422 has 32 divisors (see below), whose sum is σ = 2191207680. Its totient is φ = 491974560.

The previous prime is 1213004371. The next prime is 1213004467. The reversal of 1213004422 is 2244003121.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 1213004422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337897 + ... + 341467.

It is an arithmetic number, because the mean of its divisors is an integer number (68475240).

Almost surely, 2^1213004422 is an apocalyptic number.

1213004422 is a deficient number, since it is larger than the sum of its proper divisors (978203258).

1213004422 is a wasteful number, since it uses less digits than its factorization.

1213004422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4876.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1213004422 is about 34828.2130176097. The cubic root of 1213004422 is about 1066.4834689069.

Adding to 1213004422 its reverse (2244003121), we get a palindrome (3457007543).

The spelling of 1213004422 in words is "one billion, two hundred thirteen million, four thousand, four hundred twenty-two".