222235872 has 24 divisors (see below), whose sum is σ = 583369416. Its totient is φ = 74078592.

The previous prime is 222235859. The next prime is 222235873. The reversal of 222235872 is 278532222.

It is a happy number.

222235872 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×222235872³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222235873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1157383 + ... + 1157574.

It is an arithmetic number, because the mean of its divisors is an integer number (24307059).

Almost surely, 2^222235872 is an apocalyptic number.

It is an amenable number.

222235872 is an abundant number, since it is smaller than the sum of its proper divisors (361133544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222235872 is a wasteful number, since it uses less digits than its factorization.

222235872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2314970 (or 2314962 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 222235872 is about 14907.5776704332. The cubic root of 222235872 is about 605.7192656696.

The spelling of 222235872 in words is "two hundred twenty-two million, two hundred thirty-five thousand, eight hundred seventy-two".