2120011022011 has 4 divisors (see below), whose sum is σ = 2120285749312. Its totient is φ = 2119736294712.

The previous prime is 2120011021991. The next prime is 2120011022027. The reversal of 2120011022011 is 1102201100212.

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 2120011022011 - 2²⁹ = 2119474151099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120011021982 and 2120011022000.

It is not an unprimeable number, because it can be changed into a prime (2120011022071) 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, 137352075 + ... + 137367508.

It is an arithmetic number, because the mean of its divisors is an integer number (530071437328).

Almost surely, 2^{2120011022011} is an apocalyptic number.

2120011022011 is a deficient number, since it is larger than the sum of its proper divisors (274727301).

2120011022011 is an equidigital number, since it uses as much as digits as its factorization.

2120011022011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274727300.

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

Adding to 2120011022011 its reverse (1102201100212), we get a palindrome (3222212122223).

The spelling of 2120011022011 in words is "two trillion, one hundred twenty billion, eleven million, twenty-two thousand, eleven".