223409297121 has 32 divisors (see below), whose sum is σ = 320102928000. Its totient is φ = 138165401088.

The previous prime is 223409297093. The next prime is 223409297183. The reversal of 223409297121 is 121792904322.

It is not a de Polignac number, because 223409297121 - 2⁶ = 223409297057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (223409297191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1465045 + ... + 1610333.

It is an arithmetic number, because the mean of its divisors is an integer number (10003216500).

Almost surely, 2^223409297121 is an apocalyptic number.

It is an amenable number.

223409297121 is a deficient number, since it is larger than the sum of its proper divisors (96693630879).

223409297121 is a wasteful number, since it uses less digits than its factorization.

223409297121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145873.

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 223409297121 in words is "two hundred twenty-three billion, four hundred nine million, two hundred ninety-seven thousand, one hundred twenty-one".