34121210205 has 16 divisors (see below), whose sum is σ = 55104162624. Its totient is φ = 18027903360.

The previous prime is 34121210191. The next prime is 34121210209. The reversal of 34121210205 is 50201212143.

It is not a de Polignac number, because 34121210205 - 2⁹ = 34121209693 is a prime.

It is a super-2 number, since 2×34121210205² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34121210209) 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, 10628056 + ... + 10631265.

It is an arithmetic number, because the mean of its divisors is an integer number (3444010164).

Almost surely, 2^34121210205 is an apocalyptic number.

It is an amenable number.

34121210205 is a deficient number, since it is larger than the sum of its proper divisors (20982952419).

34121210205 is a wasteful number, since it uses less digits than its factorization.

34121210205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21259436.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 34121210205 its reverse (50201212143), we get a palindrome (84322422348).

The spelling of 34121210205 in words is "thirty-four billion, one hundred twenty-one million, two hundred ten thousand, two hundred five".