222472851 has 4 divisors (see below), whose sum is σ = 296630472. Its totient is φ = 148315232.

The previous prime is 222472807. The next prime is 222472867. The reversal of 222472851 is 158274222.

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 222472851 - 2⁶ = 222472787 is a prime.

It is a super-3 number, since 3×222472851³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (222472871) 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, 37078806 + ... + 37078811.

It is an arithmetic number, because the mean of its divisors is an integer number (74157618).

Almost surely, 2^222472851 is an apocalyptic number.

222472851 is a deficient number, since it is larger than the sum of its proper divisors (74157621).

222472851 is an equidigital number, since it uses as much as digits as its factorization.

222472851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74157620.

The product of its digits is 17920, while the sum is 33.

The square root of 222472851 is about 14915.5238258668. The cubic root of 222472851 is about 605.9344900811.

The spelling of 222472851 in words is "two hundred twenty-two million, four hundred seventy-two thousand, eight hundred fifty-one".