221088274 has 16 divisors (see below), whose sum is σ = 362835936. Its totient is φ = 100201600.

The previous prime is 221088233. The next prime is 221088299. The reversal of 221088274 is 472880122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6847 + ... + 22114.

It is an arithmetic number, because the mean of its divisors is an integer number (22677246).

Almost surely, 2^221088274 is an apocalyptic number.

221088274 is a deficient number, since it is larger than the sum of its proper divisors (141747662).

221088274 is a wasteful number, since it uses less digits than its factorization.

221088274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29321.

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 221088274 is about 14869.0374268142. The cubic root of 221088274 is about 604.6748465669.

The spelling of 221088274 in words is "two hundred twenty-one million, eighty-eight thousand, two hundred seventy-four".