223111132121 has 2 divisors, whose sum is σ = 223111132122. Its totient is φ = 223111132120.

The previous prime is 223111132109. The next prime is 223111132133. The reversal of 223111132121 is 121231111322.

It is a balanced prime because it is at equal distance from previous prime (223111132109) and next prime (223111132133).

It can be written as a sum of positive squares in only one way, i.e., 223105075600 + 6056521 = 472340^2 + 2461^2 .

It is a cyclic number.

It is not a de Polignac number, because 223111132121 - 2³⁰ = 222037390297 is a prime.

It is a super-3 number, since 3×223111132121³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223111132093 and 223111132102.

It is not a weakly prime, because it can be changed into another prime (223111132421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111555566060 + 111555566061.

It is an arithmetic number, because the mean of its divisors is an integer number (111555566061).

Almost surely, 2^223111132121 is an apocalyptic number.

It is an amenable number.

223111132121 is a deficient number, since it is larger than the sum of its proper divisors (1).

223111132121 is an equidigital number, since it uses as much as digits as its factorization.

223111132121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 20.

Adding to 223111132121 its reverse (121231111322), we get a palindrome (344342243443).

The spelling of 223111132121 in words is "two hundred twenty-three billion, one hundred eleven million, one hundred thirty-two thousand, one hundred twenty-one".