34340252221 has 16 divisors (see below), whose sum is σ = 37880638848. Its totient is φ = 30870504000.

The previous prime is 34340252213. The next prime is 34340252267. The reversal of 34340252221 is 12225204343.

It is a cyclic number.

It is not a de Polignac number, because 34340252221 - 2³ = 34340252213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34340252221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34340252291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 772615 + ... + 815851.

It is an arithmetic number, because the mean of its divisors is an integer number (2367539928).

Almost surely, 2^34340252221 is an apocalyptic number.

It is an amenable number.

34340252221 is a deficient number, since it is larger than the sum of its proper divisors (3540386627).

34340252221 is a wasteful number, since it uses less digits than its factorization.

34340252221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44052.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 34340252221 its reverse (12225204343), we get a palindrome (46565456564).

The spelling of 34340252221 in words is "thirty-four billion, three hundred forty million, two hundred fifty-two thousand, two hundred twenty-one".