2021101120211 has 4 divisors (see below), whose sum is σ = 2127474863400. Its totient is φ = 1914727377024.

The previous prime is 2021101120169. The next prime is 2021101120217. The reversal of 2021101120211 is 1120211011202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2021101120211 - 2¹⁸ = 2021100858067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021101120217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53186871566 + ... + 53186871603.

It is an arithmetic number, because the mean of its divisors is an integer number (531868715850).

Almost surely, 2^{2021101120211} is an apocalyptic number.

2021101120211 is a deficient number, since it is larger than the sum of its proper divisors (106373743189).

2021101120211 is a wasteful number, since it uses less digits than its factorization.

2021101120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106373743188.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2021101120211 its reverse (1120211011202), we get a palindrome (3141312131413).

It can be divided in two parts, 20211011202 and 11, that multiplied together give a palindrome (222321123222).

The spelling of 2021101120211 in words is "two trillion, twenty-one billion, one hundred one million, one hundred twenty thousand, two hundred eleven".