2120201220111 has 32 divisors (see below), whose sum is σ = 3097406628288. Its totient is φ = 1282061399040.

The previous prime is 2120201220107. The next prime is 2120201220113. The reversal of 2120201220111 is 1110221020212.

It is not a de Polignac number, because 2120201220111 - 2² = 2120201220107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120201220113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1924915 + ... + 2818811.

It is an arithmetic number, because the mean of its divisors is an integer number (96793957134).

Almost surely, 2^{2120201220111} is an apocalyptic number.

2120201220111 is a deficient number, since it is larger than the sum of its proper divisors (977205408177).

2120201220111 is a wasteful number, since it uses less digits than its factorization.

2120201220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894971.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2120201220111 its reverse (1110221020212), we get a palindrome (3230422240323).

The spelling of 2120201220111 in words is "two trillion, one hundred twenty billion, two hundred one million, two hundred twenty thousand, one hundred eleven".