222504001 has 4 divisors (see below), whose sum is σ = 232178112. Its totient is φ = 212829892.

The previous prime is 222503987. The next prime is 222504013. The reversal of 222504001 is 100405222.

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.

It is a cyclic number.

It is not a de Polignac number, because 222504001 - 2¹⁵ = 222471233 is a prime.

It is a super-2 number, since 2×222504001² = 99016060922016002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222504031) 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, 4837021 + ... + 4837066.

It is an arithmetic number, because the mean of its divisors is an integer number (58044528).

Almost surely, 2^222504001 is an apocalyptic number.

It is an amenable number.

222504001 is a deficient number, since it is larger than the sum of its proper divisors (9674111).

222504001 is an equidigital number, since it uses as much as digits as its factorization.

222504001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9674110.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 222504001 is about 14916.5680033981. The cubic root of 222504001 is about 605.9627691549.

Adding to 222504001 its reverse (100405222), we get a palindrome (322909223).

The spelling of 222504001 in words is "two hundred twenty-two million, five hundred four thousand, one".