221313350 has 24 divisors (see below), whose sum is σ = 412841880. Its totient is φ = 88267520.

The previous prime is 221313347. The next prime is 221313359. The reversal of 221313350 is 53313122.

221313350 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221313359) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11381 + ... + 23919.

It is an arithmetic number, because the mean of its divisors is an integer number (17201745).

Almost surely, 2^221313350 is an apocalyptic number.

221313350 is a deficient number, since it is larger than the sum of its proper divisors (191528530).

221313350 is a wasteful number, since it uses less digits than its factorization.

221313350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12904 (or 12899 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 221313350 is about 14876.6041151870. The cubic root of 221313350 is about 604.8799707242.

Adding to 221313350 its reverse (53313122), we get a palindrome (274626472).

The spelling of 221313350 in words is "two hundred twenty-one million, three hundred thirteen thousand, three hundred fifty".