34271221 has 2 divisors, whose sum is σ = 34271222. Its totient is φ = 34271220.

The previous prime is 34271177. The next prime is 34271233. The reversal of 34271221 is 12217243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31979025 + 2292196 = 5655^2 + 1514^2 .

It is a cyclic number.

It is not a de Polignac number, because 34271221 - 2⁷ = 34271093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 34271192 and 34271201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34271261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17135610 + 17135611.

It is an arithmetic number, because the mean of its divisors is an integer number (17135611).

Almost surely, 2^34271221 is an apocalyptic number.

It is an amenable number.

34271221 is a deficient number, since it is larger than the sum of its proper divisors (1).

34271221 is an equidigital number, since it uses as much as digits as its factorization.

34271221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672, while the sum is 22.

The square root of 34271221 is about 5854.1627069975. The cubic root of 34271221 is about 324.8203219841.

Adding to 34271221 its reverse (12217243), we get a palindrome (46488464).

The spelling of 34271221 in words is "thirty-four million, two hundred seventy-one thousand, two hundred twenty-one".