2120111020011 has 8 divisors (see below), whose sum is σ = 2827315835344. Its totient is φ = 1413156775680.

The previous prime is 2120111020009. The next prime is 2120111020019. The reversal of 2120111020011 is 1100201110212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2120111020011 - 2¹ = 2120111020009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120111020019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62623006 + ... + 62656851.

It is an arithmetic number, because the mean of its divisors is an integer number (353414479418).

Almost surely, 2^{2120111020011} is an apocalyptic number.

2120111020011 is a deficient number, since it is larger than the sum of its proper divisors (707204815333).

2120111020011 is a wasteful number, since it uses less digits than its factorization.

2120111020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125285501.

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

Adding to 2120111020011 its reverse (1100201110212), we get a palindrome (3220312130223).

The spelling of 2120111020011 in words is "two trillion, one hundred twenty billion, one hundred eleven million, twenty thousand, eleven".