223212061 has 2 divisors, whose sum is σ = 223212062. Its totient is φ = 223212060.

The previous prime is 223212049. The next prime is 223212103. The reversal of 223212061 is 160212322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219188025 + 4024036 = 14805^2 + 2006^2 .

It is a cyclic number.

It is not a de Polignac number, because 223212061 - 2⁵ = 223212029 is a prime.

It is a super-3 number, since 3×223212061³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223212161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111606030 + 111606031.

It is an arithmetic number, because the mean of its divisors is an integer number (111606031).

Almost surely, 2^223212061 is an apocalyptic number.

It is an amenable number.

223212061 is a deficient number, since it is larger than the sum of its proper divisors (1).

223212061 is an equidigital number, since it uses as much as digits as its factorization.

223212061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 223212061 is about 14940.2831633139. The cubic root of 223212061 is about 606.6048605003.

Adding to 223212061 its reverse (160212322), we get a palindrome (383424383).

The spelling of 223212061 in words is "two hundred twenty-three million, two hundred twelve thousand, sixty-one".