223212310109 has 2 divisors, whose sum is σ = 223212310110. Its totient is φ = 223212310108.

The previous prime is 223212310039. The next prime is 223212310133. The reversal of 223212310109 is 901013212322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130429322500 + 92782987609 = 361150^2 + 304603^2 .

It is a cyclic number.

It is not a de Polignac number, because 223212310109 - 2³⁶ = 154492833373 is a prime.

It is a super-3 number, since 3×223212310109³ (a number of 35 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223212310169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111606155054 + 111606155055.

It is an arithmetic number, because the mean of its divisors is an integer number (111606155055).

Almost surely, 2^223212310109 is an apocalyptic number.

It is an amenable number.

223212310109 is a deficient number, since it is larger than the sum of its proper divisors (1).

223212310109 is an equidigital number, since it uses as much as digits as its factorization.

223212310109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 223212310109 in words is "two hundred twenty-three billion, two hundred twelve million, three hundred ten thousand, one hundred nine".