222982881 has 8 divisors (see below), whose sum is σ = 324338784. Its totient is φ = 135141120.

The previous prime is 222982871. The next prime is 222982891. The reversal of 222982881 is 188289222.

222982881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (222982871) and next prime (222982891).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222982881 - 2⁵ = 222982849 is a prime.

It is a super-2 number, since 2×222982881² = 99442730438120322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222982871) 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, 3378496 + ... + 3378561.

It is an arithmetic number, because the mean of its divisors is an integer number (40542348).

Almost surely, 2^222982881 is an apocalyptic number.

It is an amenable number.

222982881 is a deficient number, since it is larger than the sum of its proper divisors (101355903).

222982881 is a wasteful number, since it uses less digits than its factorization.

222982881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6757071.

The product of its digits is 73728, while the sum is 42.

The square root of 222982881 is about 14932.6113255519. The cubic root of 222982881 is about 606.3971815962.

It can be divided in two parts, 22 and 2982881, that added together give a triangular number (2982903 = T₂₄₄₂).

The spelling of 222982881 in words is "two hundred twenty-two million, nine hundred eighty-two thousand, eight hundred eighty-one".