221416876 has 6 divisors (see below), whose sum is σ = 387479540. Its totient is φ = 110708436.

The previous prime is 221416873. The next prime is 221416879. The reversal of 221416876 is 678614122.

221416876 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 an interprime number because it is at equal distance from previous prime (221416873) and next prime (221416879).

It is not an unprimeable number, because it can be changed into a prime (221416873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27677106 + ... + 27677113.

Almost surely, 2^221416876 is an apocalyptic number.

It is an amenable number.

221416876 is a deficient number, since it is larger than the sum of its proper divisors (166062664).

221416876 is a wasteful number, since it uses less digits than its factorization.

221416876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55354223 (or 55354221 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 221416876 is about 14880.0831986921. The cubic root of 221416876 is about 604.9742729765.

The spelling of 221416876 in words is "two hundred twenty-one million, four hundred sixteen thousand, eight hundred seventy-six".