281222222 has 8 divisors (see below), whose sum is σ = 436379400. Its totient is φ = 135762424.

The previous prime is 281222213. The next prime is 281222233. The reversal of 281222222 is 222222182.

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

281222222 is a modest number, since divided by 22222 gives 2812 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2424272 + ... + 2424387.

It is an arithmetic number, because the mean of its divisors is an integer number (54547425).

Almost surely, 2^281222222 is an apocalyptic number.

281222222 is a deficient number, since it is larger than the sum of its proper divisors (155157178).

281222222 is a wasteful number, since it uses less digits than its factorization.

281222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4848690.

The product of its digits is 1024, while the sum is 23.

The square root of 281222222 is about 16769.6816308480. The cubic root of 281222222 is about 655.1637777815.

The spelling of 281222222 in words is "two hundred eighty-one million, two hundred twenty-two thousand, two hundred twenty-two".