222902881 has 4 divisors (see below), whose sum is σ = 222955200. Its totient is φ = 222850564.

The previous prime is 222902879. The next prime is 222902887. The reversal of 222902881 is 188209222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222902881 - 2¹ = 222902879 is a prime.

It is a super-2 number, since 2×222902881² = 99371388716200322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222902887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19141 + ... + 28498.

It is an arithmetic number, because the mean of its divisors is an integer number (55738800).

Almost surely, 2^222902881 is an apocalyptic number.

It is an amenable number.

222902881 is a deficient number, since it is larger than the sum of its proper divisors (52319).

222902881 is an equidigital number, since it uses as much as digits as its factorization.

222902881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52318.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 222902881 is about 14929.9323843077. The cubic root of 222902881 is about 606.3246534915.

The spelling of 222902881 in words is "two hundred twenty-two million, nine hundred two thousand, eight hundred eighty-one".