350212221 has 8 divisors (see below), whose sum is σ = 518832960. Its totient is φ = 233474796.

The previous prime is 350212169. The next prime is 350212229. The reversal of 350212221 is 122212053.

It is not a de Polignac number, because 350212221 - 2¹¹ = 350210173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 350212194 and 350212203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350212229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6485385 + ... + 6485438.

It is an arithmetic number, because the mean of its divisors is an integer number (64854120).

Almost surely, 2^350212221 is an apocalyptic number.

It is an amenable number.

350212221 is a deficient number, since it is larger than the sum of its proper divisors (168620739).

350212221 is a wasteful number, since it uses less digits than its factorization.

350212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12970832 (or 12970826 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 350212221 is about 18713.9579191576. The cubic root of 350212221 is about 704.8722810737.

Adding to 350212221 its reverse (122212053), we get a palindrome (472424274).

The spelling of 350212221 in words is "three hundred fifty million, two hundred twelve thousand, two hundred twenty-one".