221377348 has 6 divisors (see below), whose sum is σ = 387410366. Its totient is φ = 110688672.

The previous prime is 221377339. The next prime is 221377363. The reversal of 221377348 is 843773122.

221377348 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 217621504 + 3755844 = 14752^2 + 1938^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27672165 + ... + 27672172.

Almost surely, 2^221377348 is an apocalyptic number.

It is an amenable number.

221377348 is a deficient number, since it is larger than the sum of its proper divisors (166033018).

221377348 is a wasteful number, since it uses less digits than its factorization.

221377348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55344341 (or 55344339 counting only the distinct ones).

The product of its digits is 56448, while the sum is 37.

The square root of 221377348 is about 14878.7549210275. The cubic root of 221377348 is about 604.9382702311.

The spelling of 221377348 in words is "two hundred twenty-one million, three hundred seventy-seven thousand, three hundred forty-eight".