20001250211 has 4 divisors (see below), whose sum is σ = 20489085624. Its totient is φ = 19513414800.

The previous prime is 20001250151. The next prime is 20001250229. The reversal of 20001250211 is 11205210002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20001250211 - 2¹⁴ = 20001233827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001250811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243917645 + ... + 243917726.

It is an arithmetic number, because the mean of its divisors is an integer number (5122271406).

Almost surely, 2^20001250211 is an apocalyptic number.

20001250211 is a deficient number, since it is larger than the sum of its proper divisors (487835413).

20001250211 is an equidigital number, since it uses as much as digits as its factorization.

20001250211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487835412.

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 20001250211 its reverse (11205210002), we get a palindrome (31206460213).

The spelling of 20001250211 in words is "twenty billion, one million, two hundred fifty thousand, two hundred eleven".