221317094 has 4 divisors (see below), whose sum is σ = 331975644. Its totient is φ = 110658546.

The previous prime is 221317081. The next prime is 221317097. The reversal of 221317094 is 490713122.

221317094 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221317097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55329272 + ... + 55329275.

It is an arithmetic number, because the mean of its divisors is an integer number (82993911).

Almost surely, 2^221317094 is an apocalyptic number.

221317094 is a deficient number, since it is larger than the sum of its proper divisors (110658550).

221317094 is a wasteful number, since it uses less digits than its factorization.

221317094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110658549.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 221317094 is about 14876.7299498243. The cubic root of 221317094 is about 604.8833816614.

The spelling of 221317094 in words is "two hundred twenty-one million, three hundred seventeen thousand, ninety-four".