34321221 has 24 divisors (see below), whose sum is σ = 56437056. Its totient is φ = 19895040.

The previous prime is 34321207. The next prime is 34321229. The reversal of 34321221 is 12212343.

It is not a de Polignac number, because 34321221 - 2¹⁰ = 34320197 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 34321194 and 34321203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34321229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5260 + ... + 9813.

It is an arithmetic number, because the mean of its divisors is an integer number (2351544).

Almost surely, 2^34321221 is an apocalyptic number.

It is an amenable number.

34321221 is a deficient number, since it is larger than the sum of its proper divisors (22115835).

34321221 is a wasteful number, since it uses less digits than its factorization.

34321221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15113 (or 15110 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 34321221 is about 5858.4316160556. The cubic root of 34321221 is about 324.9782107680.

Adding to 34321221 its reverse (12212343), we get a palindrome (46533564).

The spelling of 34321221 in words is "thirty-four million, three hundred twenty-one thousand, two hundred twenty-one".