1222404513 has 8 divisors (see below), whose sum is σ = 1778042976. Its totient is φ = 740851200.

The previous prime is 1222404461. The next prime is 1222404517. The reversal of 1222404513 is 3154042221.

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

It is not a de Polignac number, because 1222404513 - 2⁸ = 1222404257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222404517) 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, 18521248 + ... + 18521313.

It is an arithmetic number, because the mean of its divisors is an integer number (222255372).

Almost surely, 2^1222404513 is an apocalyptic number.

It is an amenable number.

1222404513 is a deficient number, since it is larger than the sum of its proper divisors (555638463).

1222404513 is a wasteful number, since it uses less digits than its factorization.

1222404513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37042575.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1222404513 is about 34962.9019533562. The cubic root of 1222404513 is about 1069.2312622587.

Adding to 1222404513 its reverse (3154042221), we get a palindrome (4376446734).

The spelling of 1222404513 in words is "one billion, two hundred twenty-two million, four hundred four thousand, five hundred thirteen".