221348888 has 8 divisors (see below), whose sum is σ = 415029180. Its totient is φ = 110674440.

The previous prime is 221348863. The next prime is 221348893. The reversal of 221348888 is 888843122.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13834298 + ... + 13834313.

Almost surely, 2^221348888 is an apocalyptic number.

It is an amenable number.

221348888 is a deficient number, since it is larger than the sum of its proper divisors (193680292).

221348888 is a wasteful number, since it uses less digits than its factorization.

221348888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27668617 (or 27668613 counting only the distinct ones).

The product of its digits is 196608, while the sum is 44.

The square root of 221348888 is about 14877.7984930567. The cubic root of 221348888 is about 604.9123457465.

The spelling of 221348888 in words is "two hundred twenty-one million, three hundred forty-eight thousand, eight hundred eighty-eight".