222772 has 24 divisors (see below), whose sum is σ = 437472. Its totient is φ = 98400.

The previous prime is 222731. The next prime is 222773. The reversal of 222772 is 277222.

222772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2643 + ... + 2725.

It is an arithmetic number, because the mean of its divisors is an integer number (18228).

2²²²⁷⁷² is an apocalyptic number.

222772 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

222772 is a deficient number, since it is larger than the sum of its proper divisors (214700).

222772 is a wasteful number, since it uses less digits than its factorization.

222772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 157 counting only the distinct ones).

The product of its digits is 784, while the sum is 22.

The square root of 222772 is about 471.9872879644. The cubic root of 222772 is about 60.6205959177.

Adding to 222772 its reverse (277222), we get a palindrome (499994).

The spelling of 222772 in words is "two hundred twenty-two thousand, seven hundred seventy-two", and thus it is an iban number.