20000020212211 has 4 divisors (see below), whose sum is σ = 21538483305472. Its totient is φ = 18461557118952.

The previous prime is 20000020212197. The next prime is 20000020212233. The reversal of 20000020212211 is 11221202000002.

It is a happy number.

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 20000020212211 - 2¹⁵ = 20000020179443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 1538463093247 = 20000020212211 / (2 + 0 + 0 + 0 + 0 + 0 + 2 + 0 + 2 + 1 + 2 + 2 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20000020212191 and 20000020212200.

It is not an unprimeable number, because it can be changed into a prime (20000020212911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 769231546611 + ... + 769231546636.

It is an arithmetic number, because the mean of its divisors is an integer number (5384620826368).

Almost surely, 2^{20000020212211} is an apocalyptic number.

20000020212211 is a deficient number, since it is larger than the sum of its proper divisors (1538463093261).

20000020212211 is a wasteful number, since it uses less digits than its factorization.

20000020212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538463093260.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20000020212211 its reverse (11221202000002), we get a palindrome (31221222212213).

The spelling of 20000020212211 in words is "twenty trillion, twenty million, two hundred twelve thousand, two hundred eleven".