34202243221 has 2 divisors, whose sum is σ = 34202243222. Its totient is φ = 34202243220.

The previous prime is 34202243209. The next prime is 34202243267. The reversal of 34202243221 is 12234220243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23487095025 + 10715148196 = 153255^2 + 103514^2 .

It is a cyclic number.

It is not a de Polignac number, because 34202243221 - 2⁷ = 34202243093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34202273221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17101121610 + 17101121611.

It is an arithmetic number, because the mean of its divisors is an integer number (17101121611).

Almost surely, 2^34202243221 is an apocalyptic number.

It is an amenable number.

34202243221 is a deficient number, since it is larger than the sum of its proper divisors (1).

34202243221 is an equidigital number, since it uses as much as digits as its factorization.

34202243221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 34202243221 its reverse (12234220243), we get a palindrome (46436463464).

The spelling of 34202243221 in words is "thirty-four billion, two hundred two million, two hundred forty-three thousand, two hundred twenty-one".