221242094 has 16 divisors (see below), whose sum is σ = 338083200. Its totient is φ = 108554424.

The previous prime is 221242051. The next prime is 221242103. The reversal of 221242094 is 490242122.

It is a happy number.

It is a congruent number.

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, 84497 + ... + 87075.

It is an arithmetic number, because the mean of its divisors is an integer number (21130200).

Almost surely, 2^221242094 is an apocalyptic number.

221242094 is a deficient number, since it is larger than the sum of its proper divisors (116841106).

221242094 is a wasteful number, since it uses less digits than its factorization.

221242094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 221242094 is about 14874.2090209866. The cubic root of 221242094 is about 604.8150462573.

The spelling of 221242094 in words is "two hundred twenty-one million, two hundred forty-two thousand, ninety-four".