1204224001 has 4 divisors (see below), whose sum is σ = 1208667904. Its totient is φ = 1199780100.

The previous prime is 1204223981. The next prime is 1204224013. The reversal of 1204224001 is 1004224021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1004224021 = 43 ⋅23354047.

It is a cyclic number.

It is not a de Polignac number, because 1204224001 - 2⁷ = 1204223873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1204224061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2221545 + ... + 2222086.

It is an arithmetic number, because the mean of its divisors is an integer number (302166976).

It is a Proth number, since it is equal to 18375 ⋅ 2¹⁶ + 1 and 18375 < 2¹⁶.

Almost surely, 2^1204224001 is an apocalyptic number.

It is an amenable number.

1204224001 is a deficient number, since it is larger than the sum of its proper divisors (4443903).

1204224001 is an equidigital number, since it uses as much as digits as its factorization.

1204224001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4443902.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1204224001 is about 34701.9307964269. The cubic root of 1204224001 is about 1063.9039620786.

Adding to 1204224001 its reverse (1004224021), we get a palindrome (2208448022).

The spelling of 1204224001 in words is "one billion, two hundred four million, two hundred twenty-four thousand, one".