223452121 has 2 divisors, whose sum is σ = 223452122. Its totient is φ = 223452120.

The previous prime is 223452109. The next prime is 223452133. The reversal of 223452121 is 121254322.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (223452109) and next prime (223452133).

It can be written as a sum of positive squares in only one way, i.e., 207936400 + 15515721 = 14420^2 + 3939^2 .

It is a cyclic number.

It is not a de Polignac number, because 223452121 - 2⁷ = 223451993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 223452092 and 223452101.

It is not a weakly prime, because it can be changed into another prime (223452101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111726060 + 111726061.

It is an arithmetic number, because the mean of its divisors is an integer number (111726061).

Almost surely, 2^223452121 is an apocalyptic number.

It is an amenable number.

223452121 is a deficient number, since it is larger than the sum of its proper divisors (1).

223452121 is an equidigital number, since it uses as much as digits as its factorization.

223452121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 22.

The square root of 223452121 is about 14948.3149886534. The cubic root of 223452121 is about 606.8222462888.

The spelling of 223452121 in words is "two hundred twenty-three million, four hundred fifty-two thousand, one hundred twenty-one".