222931061 has 2 divisors, whose sum is σ = 222931062. Its totient is φ = 222931060.

The previous prime is 222930997. The next prime is 222931099. The reversal of 222931061 is 160139222.

222931061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141372100 + 81558961 = 11890^2 + 9031^2 .

It is a cyclic number.

It is not a de Polignac number, because 222931061 - 2⁶ = 222930997 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 222931061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222937061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111465530 + 111465531.

It is an arithmetic number, because the mean of its divisors is an integer number (111465531).

Almost surely, 2^222931061 is an apocalyptic number.

It is an amenable number.

222931061 is a deficient number, since it is larger than the sum of its proper divisors (1).

222931061 is an equidigital number, since it uses as much as digits as its factorization.

222931061 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 square root of 222931061 is about 14930.8760961974. The cubic root of 222931061 is about 606.3502034959.

The spelling of 222931061 in words is "two hundred twenty-two million, nine hundred thirty-one thousand, sixty-one".