222231789 has 48 divisors (see below), whose sum is σ = 360495360. Its totient is φ = 135233280.

The previous prime is 222231787. The next prime is 222231791. The reversal of 222231789 is 987132222.

It is an interprime number because it is at equal distance from previous prime (222231787) and next prime (222231791).

It is not a de Polignac number, because 222231789 - 2¹ = 222231787 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222231787) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 515404 + ... + 515834.

It is an arithmetic number, because the mean of its divisors is an integer number (7510320).

Almost surely, 2^222231789 is an apocalyptic number.

It is an amenable number.

222231789 is a deficient number, since it is larger than the sum of its proper divisors (138263571).

222231789 is a wasteful number, since it uses less digits than its factorization.

222231789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579 (or 560 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 222231789 is about 14907.4407260267. The cubic root of 222231789 is about 605.7155561471.

The spelling of 222231789 in words is "two hundred twenty-two million, two hundred thirty-one thousand, seven hundred eighty-nine".