2120200011111 has 64 divisors (see below), whose sum is σ = 3761408537600. Its totient is φ = 1030852002816.

The previous prime is 2120200011109. The next prime is 2120200011151. The reversal of 2120200011111 is 1111100020212.

It is not a de Polignac number, because 2120200011111 - 2¹ = 2120200011109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120200011151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5331766 + ... + 5715603.

It is an arithmetic number, because the mean of its divisors is an integer number (58772008400).

Almost surely, 2^{2120200011111} is an apocalyptic number.

2120200011111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2120200011111 is a deficient number, since it is larger than the sum of its proper divisors (1641208526489).

2120200011111 is a wasteful number, since it uses less digits than its factorization.

2120200011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11047448.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2120200011111 its reverse (1111100020212), we get a palindrome (3231300031323).

The spelling of 2120200011111 in words is "two trillion, one hundred twenty billion, two hundred million, eleven thousand, one hundred eleven".