2111020020011 has 16 divisors (see below), whose sum is σ = 2481778897920. Its totient is φ = 1757926605120.

The previous prime is 2111020019989. The next prime is 2111020020041. The reversal of 2111020020011 is 1100200201112.

It is not a de Polignac number, because 2111020020011 - 2⁶ = 2111020019947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2111020019974 and 2111020020001.

It is not an unprimeable number, because it can be changed into a prime (2111020020041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15319421 + ... + 15456606.

It is an arithmetic number, because the mean of its divisors is an integer number (155111181120).

Almost surely, 2^{2111020020011} is an apocalyptic number.

2111020020011 is a deficient number, since it is larger than the sum of its proper divisors (370758877909).

2111020020011 is a wasteful number, since it uses less digits than its factorization.

2111020020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30776314.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2111020020011 its reverse (1100200201112), we get a palindrome (3211220221123).

The spelling of 2111020020011 in words is "two trillion, one hundred eleven billion, twenty million, twenty thousand, eleven".