268721222 has 32 divisors (see below), whose sum is σ = 503345664. Its totient is φ = 104529600.

The previous prime is 268721209. The next prime is 268721239. The reversal of 268721222 is 222127862.

It is a super-2 number, since 2×268721222² = 144422190306346568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145847 + ... + 147677.

It is an arithmetic number, because the mean of its divisors is an integer number (15729552).

Almost surely, 2^268721222 is an apocalyptic number.

268721222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

268721222 is a deficient number, since it is larger than the sum of its proper divisors (234624442).

268721222 is a wasteful number, since it uses less digits than its factorization.

268721222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804.

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

The square root of 268721222 is about 16392.7185664855. The cubic root of 268721222 is about 645.3084052845.

The spelling of 268721222 in words is "two hundred sixty-eight million, seven hundred twenty-one thousand, two hundred twenty-two".