2112021020011 has 4 divisors (see below), whose sum is σ = 2413738308592. Its totient is φ = 1810303731432.

The previous prime is 2112021019991. The next prime is 2112021020089. The reversal of 2112021020011 is 1100201202112.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2112021020011 - 2¹⁹ = 2112020495723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2112021019973 and 2112021020000.

It is not an unprimeable number, because it can be changed into a prime (2112021020611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150858644280 + ... + 150858644293.

It is an arithmetic number, because the mean of its divisors is an integer number (603434577148).

Almost surely, 2^{2112021020011} is an apocalyptic number.

2112021020011 is a deficient number, since it is larger than the sum of its proper divisors (301717288581).

2112021020011 is an equidigital number, since it uses as much as digits as its factorization.

2112021020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301717288580.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2112021020011 its reverse (1100201202112), we get a palindrome (3212222222123).

The spelling of 2112021020011 in words is "two trillion, one hundred twelve billion, twenty-one million, twenty thousand, eleven".