20211000212211 has 16 divisors (see below), whose sum is σ = 27819212359680. Its totient is φ = 13038454157760.

The previous prime is 20211000212177. The next prime is 20211000212219. The reversal of 20211000212211 is 11221200011202.

It is not a de Polignac number, because 20211000212211 - 2¹³ = 20211000204019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20211000212219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6152095 + ... + 8847048.

It is an arithmetic number, because the mean of its divisors is an integer number (1738700772480).

Almost surely, 2^{20211000212211} is an apocalyptic number.

20211000212211 is a deficient number, since it is larger than the sum of its proper divisors (7608212147469).

20211000212211 is a wasteful number, since it uses less digits than its factorization.

20211000212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15013666.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20211000212211 its reverse (11221200011202), we get a palindrome (31432200223413).

The spelling of 20211000212211 in words is "twenty trillion, two hundred eleven billion, two hundred twelve thousand, two hundred eleven".