222681047 has 4 divisors (see below), whose sum is σ = 227859720. Its totient is φ = 217502376.

The previous prime is 222681031. The next prime is 222681061. The reversal of 222681047 is 740186222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222681047 - 2⁴ = 222681031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222681247) 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, 2589272 + ... + 2589357.

It is an arithmetic number, because the mean of its divisors is an integer number (56964930).

Almost surely, 2^222681047 is an apocalyptic number.

222681047 is a deficient number, since it is larger than the sum of its proper divisors (5178673).

222681047 is an equidigital number, since it uses as much as digits as its factorization.

222681047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5178672.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 222681047 is about 14922.5013653878. The cubic root of 222681047 is about 606.1234476767.

The spelling of 222681047 in words is "two hundred twenty-two million, six hundred eighty-one thousand, forty-seven".