221201094 has 8 divisors (see below), whose sum is σ = 442402200. Its totient is φ = 73733696.

The previous prime is 221201083. The next prime is 221201117. The reversal of 221201094 is 490102122.

221201094 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

221201094 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 221201094.

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, 18433419 + ... + 18433430.

It is an arithmetic number, because the mean of its divisors is an integer number (55300275).

Almost surely, 2^221201094 is an apocalyptic number.

221201094 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221201094 is a wasteful number, since it uses less digits than its factorization.

221201094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36866854.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 221201094 is about 14872.8307325808. The cubic root of 221201094 is about 604.7776830407. Note that the first 3 decimals are identical.

The spelling of 221201094 in words is "two hundred twenty-one million, two hundred one thousand, ninety-four".