221012094 has 16 divisors (see below), whose sum is σ = 442209168. Its totient is φ = 73639872.

The previous prime is 221012081. The next prime is 221012111. The reversal of 221012094 is 490210122.

221012094 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 221012094.

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, 11514 + ... + 23970.

It is an arithmetic number, because the mean of its divisors is an integer number (27638073).

Almost surely, 2^221012094 is an apocalyptic number.

221012094 is an abundant number, since it is smaller than the sum of its proper divisors (221197074).

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

221012094 is a wasteful number, since it uses less digits than its factorization.

221012094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15419.

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

The square root of 221012094 is about 14866.4755069922. The cubic root of 221012094 is about 604.6053880037.

The spelling of 221012094 in words is "two hundred twenty-one million, twelve thousand, ninety-four".