223013332121 has 4 divisors (see below), whose sum is σ = 223200268212. Its totient is φ = 222826396032.

The previous prime is 223013332097. The next prime is 223013332127. The reversal of 223013332121 is 121233310322.

223013332121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 180756774025 + 42256558096 = 425155^2 + 205564^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223013332121 is a prime.

It is a super-2 number, since 2×223013332121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (223013332127) 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, 93466256 + ... + 93468641.

It is an arithmetic number, because the mean of its divisors is an integer number (55800067053).

Almost surely, 2^223013332121 is an apocalyptic number.

It is an amenable number.

223013332121 is a deficient number, since it is larger than the sum of its proper divisors (186936091).

223013332121 is a wasteful number, since it uses less digits than its factorization.

223013332121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186936090.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 223013332121 its reverse (121233310322), we get a palindrome (344246642443).

The spelling of 223013332121 in words is "two hundred twenty-three billion, thirteen million, three hundred thirty-two thousand, one hundred twenty-one".