223040121 has 4 divisors (see below), whose sum is σ = 297386832. Its totient is φ = 148693412.

The previous prime is 223040101. The next prime is 223040143. The reversal of 223040121 is 121040322.

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 223040121 - 2⁵ = 223040089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223040121.

It is not an unprimeable number, because it can be changed into a prime (223040101) 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, 37173351 + ... + 37173356.

It is an arithmetic number, because the mean of its divisors is an integer number (74346708).

Almost surely, 2^223040121 is an apocalyptic number.

It is an amenable number.

223040121 is a deficient number, since it is larger than the sum of its proper divisors (74346711).

223040121 is an equidigital number, since it uses as much as digits as its factorization.

223040121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74346710.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 223040121 is about 14934.5278130914. The cubic root of 223040121 is about 606.4490648094.

Adding to 223040121 its reverse (121040322), we get a palindrome (344080443).

The spelling of 223040121 in words is "two hundred twenty-three million, forty thousand, one hundred twenty-one".