2120021220011 has 4 divisors (see below), whose sum is σ = 2120096221632. Its totient is φ = 2119946218392.

The previous prime is 2120021220001. The next prime is 2120021220059. The reversal of 2120021220011 is 1100221200212.

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 2120021220011 - 2⁶ = 2120021219947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120021220001) 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, 37458395 + ... + 37514948.

It is an arithmetic number, because the mean of its divisors is an integer number (530024055408).

Almost surely, 2^{2120021220011} is an apocalyptic number.

2120021220011 is a deficient number, since it is larger than the sum of its proper divisors (75001621).

2120021220011 is an equidigital number, since it uses as much as digits as its factorization.

2120021220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75001620.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2120021220011 its reverse (1100221200212), we get a palindrome (3220242420223).

The spelling of 2120021220011 in words is "two trillion, one hundred twenty billion, twenty-one million, two hundred twenty thousand, eleven".