2120221110211 has 4 divisors (see below), whose sum is σ = 2122132942800. Its totient is φ = 2118309277624.

The previous prime is 2120221110143. The next prime is 2120221110221. The reversal of 2120221110211 is 1120111220212.

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 2120221110211 - 2⁷ = 2120221110083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120221110221) 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, 955914631 + ... + 955916848.

It is an arithmetic number, because the mean of its divisors is an integer number (530533235700).

Almost surely, 2^{2120221110211} is an apocalyptic number.

2120221110211 is a deficient number, since it is larger than the sum of its proper divisors (1911832589).

2120221110211 is a wasteful number, since it uses less digits than its factorization.

2120221110211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911832588.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2120221110211 its reverse (1120111220212), we get a palindrome (3240332330423).

The spelling of 2120221110211 in words is "two trillion, one hundred twenty billion, two hundred twenty-one million, one hundred ten thousand, two hundred eleven".