222140497 has 2 divisors, whose sum is σ = 222140498. Its totient is φ = 222140496.

The previous prime is 222140461. The next prime is 222140531. The reversal of 222140497 is 794041222.

222140497 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., 212255761 + 9884736 = 14569^2 + 3144^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222140497 is a prime.

It is equal to p_12233938 and since 222140497 and 12233938 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (222140447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111070248 + 111070249.

It is an arithmetic number, because the mean of its divisors is an integer number (111070249).

Almost surely, 2^222140497 is an apocalyptic number.

It is an amenable number.

222140497 is a deficient number, since it is larger than the sum of its proper divisors (1).

222140497 is an equidigital number, since it uses as much as digits as its factorization.

222140497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 222140497 is about 14904.3784506433. The cubic root of 222140497 is about 605.6326028810.

The spelling of 222140497 in words is "two hundred twenty-two million, one hundred forty thousand, four hundred ninety-seven".