20211102211 has 8 divisors (see below), whose sum is σ = 20910345120. Its totient is φ = 19512013248.

The previous prime is 20211102193. The next prime is 20211102253. The reversal of 20211102211 is 11220111202.

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 20211102211 - 2⁷ = 20211102083 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20211102191 and 20211102200.

It is not an unprimeable number, because it can be changed into a prime (20211102011) 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, 270895 + ... + 337351.

It is an arithmetic number, because the mean of its divisors is an integer number (2613793140).

Almost surely, 2^20211102211 is an apocalyptic number.

20211102211 is a deficient number, since it is larger than the sum of its proper divisors (699242909).

20211102211 is a wasteful number, since it uses less digits than its factorization.

20211102211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76973.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20211102211 its reverse (11220111202), we get a palindrome (31431213413).

The spelling of 20211102211 in words is "twenty billion, two hundred eleven million, one hundred two thousand, two hundred eleven".