221342350 has 12 divisors (see below), whose sum is σ = 411696864. Its totient is φ = 88536920.

The previous prime is 221342347. The next prime is 221342369. The reversal of 221342350 is 53243122.

221342350 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 an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2213374 + ... + 2213473.

It is an arithmetic number, because the mean of its divisors is an integer number (34308072).

Almost surely, 2^221342350 is an apocalyptic number.

221342350 is a deficient number, since it is larger than the sum of its proper divisors (190354514).

221342350 is a wasteful number, since it uses less digits than its factorization.

221342350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4426859 (or 4426854 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 221342350 is about 14877.5787680657. The cubic root of 221342350 is about 604.9063899062.

Adding to 221342350 its reverse (53243122), we get a palindrome (274585472).

It can be divided in two parts, 22134 and 2350, that multiplied together give a triangular number (52014900 = T₁₀₁₉₉).

The spelling of 221342350 in words is "two hundred twenty-one million, three hundred forty-two thousand, three hundred fifty".