2120021020011 has 64 divisors (see below), whose sum is σ = 3096161832960. Its totient is φ = 1286809328640.

The previous prime is 2120021020001. The next prime is 2120021020063. The reversal of 2120021020011 is 1100201200212.

It is not a de Polignac number, because 2120021020011 - 2¹⁸ = 2120020757867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120021020001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17546041 + ... + 17666453.

It is an arithmetic number, because the mean of its divisors is an integer number (48377528640).

Almost surely, 2^{2120021020011} is an apocalyptic number.

2120021020011 is a deficient number, since it is larger than the sum of its proper divisors (976140812949).

2120021020011 is a wasteful number, since it uses less digits than its factorization.

2120021020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120636.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2120021020011 its reverse (1100201200212), we get a palindrome (3220222220223).

The spelling of 2120021020011 in words is "two trillion, one hundred twenty billion, twenty-one million, twenty thousand, eleven".