222487669 has 2 divisors, whose sum is σ = 222487670. Its totient is φ = 222487668.

The previous prime is 222487667. The next prime is 222487691. The reversal of 222487669 is 966784222.

222487669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221622769 + 864900 = 14887^2 + 930^2 .

It is a cyclic number.

It is not a de Polignac number, because 222487669 - 2¹ = 222487667 is a prime.

It is a super-2 number, since 2×222487669² = 99001525714107122, which contains 22 as substring.

Together with 222487667, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222487667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111243834 + 111243835.

It is an arithmetic number, because the mean of its divisors is an integer number (111243835).

Almost surely, 2^222487669 is an apocalyptic number.

It is an amenable number.

222487669 is a deficient number, since it is larger than the sum of its proper divisors (1).

222487669 is an equidigital number, since it uses as much as digits as its factorization.

222487669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 46.

The square root of 222487669 is about 14916.0205483902. The cubic root of 222487669 is about 605.9479427157.

The spelling of 222487669 in words is "two hundred twenty-two million, four hundred eighty-seven thousand, six hundred sixty-nine".