34221413521 has 4 divisors (see below), whose sum is σ = 34633719792. Its totient is φ = 33809107252.

The previous prime is 34221413483. The next prime is 34221413531. The reversal of 34221413521 is 12531412243.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34221413521 is a prime.

It is a super-2 number, since 2×34221413521² (a number of 22 digits) contains 22 as substring.

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 34221413521.

It is not an unprimeable number, because it can be changed into a prime (34221413531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206153011 + ... + 206153176.

It is an arithmetic number, because the mean of its divisors is an integer number (8658429948).

Almost surely, 2^34221413521 is an apocalyptic number.

It is an amenable number.

34221413521 is a deficient number, since it is larger than the sum of its proper divisors (412306271).

34221413521 is an equidigital number, since it uses as much as digits as its factorization.

34221413521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412306270.

The product of its digits is 5760, while the sum is 28.

Adding to 34221413521 its reverse (12531412243), we get a palindrome (46752825764).

The spelling of 34221413521 in words is "thirty-four billion, two hundred twenty-one million, four hundred thirteen thousand, five hundred twenty-one".