20211011100211 has 8 divisors (see below), whose sum is σ = 20221785652320. Its totient is φ = 20200237089792.

The previous prime is 20211011100191. The next prime is 20211011100227. The reversal of 20211011100211 is 11200111011202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20211011100211 - 2²⁵ = 20210977545779 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20211011100191 and 20211011100200.

It is not an unprimeable number, because it can be changed into a prime (20211011103211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90553810 + ... + 90776728.

It is an arithmetic number, because the mean of its divisors is an integer number (2527723206540).

Almost surely, 2^{20211011100211} is an apocalyptic number.

20211011100211 is a deficient number, since it is larger than the sum of its proper divisors (10774552109).

20211011100211 is a wasteful number, since it uses less digits than its factorization.

20211011100211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270845.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20211011100211 its reverse (11200111011202), we get a palindrome (31411122111413).

The spelling of 20211011100211 in words is "twenty trillion, two hundred eleven billion, eleven million, one hundred thousand, two hundred eleven".