2120211020011 has 4 divisors (see below), whose sum is σ = 2423098308592. Its totient is φ = 1817323731432.

The previous prime is 2120211020009. The next prime is 2120211020029. The reversal of 2120211020011 is 1100201120212.

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

It is a cyclic number.

It is not a de Polignac number, because 2120211020011 - 2¹ = 2120211020009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120211019973 and 2120211020000.

It is not an unprimeable number, because it can be changed into a prime (2120211020071) 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, 151443644280 + ... + 151443644293.

It is an arithmetic number, because the mean of its divisors is an integer number (605774577148).

Almost surely, 2^{2120211020011} is an apocalyptic number.

2120211020011 is a deficient number, since it is larger than the sum of its proper divisors (302887288581).

2120211020011 is an equidigital number, since it uses as much as digits as its factorization.

2120211020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302887288580.

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

Adding to 2120211020011 its reverse (1100201120212), we get a palindrome (3220412140223).

The spelling of 2120211020011 in words is "two trillion, one hundred twenty billion, two hundred eleven million, twenty thousand, eleven".