201224407 has 4 divisors (see below), whose sum is σ = 201284776. Its totient is φ = 201164040.

The previous prime is 201224363. The next prime is 201224467. The reversal of 201224407 is 704422102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704422102 = 2 ⋅352211051.

It is a cyclic number.

It is not a de Polignac number, because 201224407 - 2²⁷ = 67006679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201224467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24873 + ... + 31954.

It is an arithmetic number, because the mean of its divisors is an integer number (50321194).

Almost surely, 2^201224407 is an apocalyptic number.

201224407 is a deficient number, since it is larger than the sum of its proper divisors (60369).

201224407 is an equidigital number, since it uses as much as digits as its factorization.

201224407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60368.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 201224407 is about 14185.3588957065. The cubic root of 201224407 is about 585.9945164835.

Adding to 201224407 its reverse (704422102), we get a palindrome (905646509).

The spelling of 201224407 in words is "two hundred one million, two hundred twenty-four thousand, four hundred seven".