20211110211201 has 96 divisors (see below), whose sum is σ = 36447636906240. Its totient is φ = 9687708463104.

The previous prime is 20211110211179. The next prime is 20211110211203. The reversal of 20211110211201 is 10211201111202.

It is a happy number.

It is not a de Polignac number, because 20211110211201 - 2¹⁵ = 20211110178433 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20211110211203) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2128726 + ... + 6704751.

It is an arithmetic number, because the mean of its divisors is an integer number (379662884440).

Almost surely, 2^{20211110211201} is an apocalyptic number.

20211110211201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20211110211201 is a deficient number, since it is larger than the sum of its proper divisors (16236526695039).

20211110211201 is a wasteful number, since it uses less digits than its factorization.

20211110211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8833563 (or 8833546 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20211110211201 its reverse (10211201111202), we get a palindrome (30422311322403).

Subtracting from 20211110211201 its reverse (10211201111202), we obtain a palindrome (9999909099999).

The spelling of 20211110211201 in words is "twenty trillion, two hundred eleven billion, one hundred ten million, two hundred eleven thousand, two hundred one".