2120221122111 has 12 divisors (see below), whose sum is σ = 3063306734488. Its totient is φ = 1413127618704.

The previous prime is 2120221122083. The next prime is 2120221122143. The reversal of 2120221122111 is 1112211220212.

2120221122111 is a `hidden beast` number, since 21 + 202 + 211 + 221 + 11 = 666.

It is not a de Polignac number, because 2120221122111 - 2¹⁷ = 2120220991039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120221124111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29389420 + ... + 29461473.

Almost surely, 2^{2120221122111} is an apocalyptic number.

2120221122111 is a deficient number, since it is larger than the sum of its proper divisors (943085612377).

2120221122111 is a wasteful number, since it uses less digits than its factorization.

2120221122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58854902 (or 58854899 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2120221122111 its reverse (1112211220212), we get a palindrome (3232432342323).

The spelling of 2120221122111 in words is "two trillion, one hundred twenty billion, two hundred twenty-one million, one hundred twenty-two thousand, one hundred eleven".