20002122401 has 4 divisors (see below), whose sum is σ = 20003481600. Its totient is φ = 20000763204.

The previous prime is 20002122383. The next prime is 20002122407. The reversal of 20002122401 is 10422120002.

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 20002122401 - 2¹⁴ = 20002106017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20002122407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657281 + ... + 687038.

It is an arithmetic number, because the mean of its divisors is an integer number (5000870400).

Almost surely, 2^20002122401 is an apocalyptic number.

It is an amenable number.

20002122401 is a deficient number, since it is larger than the sum of its proper divisors (1359199).

20002122401 is a wasteful number, since it uses less digits than its factorization.

20002122401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359198.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20002122401 its reverse (10422120002), we get a palindrome (30424242403).

The spelling of 20002122401 in words is "twenty billion, two million, one hundred twenty-two thousand, four hundred one".