211120100112021 has 16 divisors (see below), whose sum is σ = 288049771215360. Its totient is φ = 137468807224560.

The previous prime is 211120100111911. The next prime is 211120100112071. The reversal of 211120100112021 is 120211001021112.

It is a happy number.

It is not a de Polignac number, because 211120100112021 - 2¹¹ = 211120100109973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211120100112071) 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, 24499225 + ... + 31975806.

It is an arithmetic number, because the mean of its divisors is an integer number (18003110700960).

Almost surely, 2^{211120100112021} is an apocalyptic number.

It is an amenable number.

211120100112021 is a deficient number, since it is larger than the sum of its proper divisors (76929671103339).

211120100112021 is a wasteful number, since it uses less digits than its factorization.

211120100112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56504056.

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

Adding to 211120100112021 its reverse (120211001021112), we get a palindrome (331331101133133).

Subtracting from 211120100112021 its reverse (120211001021112), we obtain a palindrome (90909099090909).

The spelling of 211120100112021 in words is "two hundred eleven trillion, one hundred twenty billion, one hundred million, one hundred twelve thousand, twenty-one".