20000034120221 has 4 divisors (see below), whose sum is σ = 20000247372672. Its totient is φ = 19999820867772.

The previous prime is 20000034120211. The next prime is 20000034120229. The reversal of 20000034120221 is 12202143000002.

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 not a de Polignac number, because 20000034120221 - 2³⁸ = 19725156213277 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 20000034120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000034120229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106485485 + ... + 106673138.

It is an arithmetic number, because the mean of its divisors is an integer number (5000061843168).

Almost surely, 2^{20000034120221} is an apocalyptic number.

It is an amenable number.

20000034120221 is a deficient number, since it is larger than the sum of its proper divisors (213252451).

20000034120221 is an equidigital number, since it uses as much as digits as its factorization.

20000034120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213252450.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20000034120221 its reverse (12202143000002), we get a palindrome (32202177120223).

The spelling of 20000034120221 in words is "twenty trillion, thirty-four million, one hundred twenty thousand, two hundred twenty-one".