2021122011011 has 2 divisors, whose sum is σ = 2021122011012. Its totient is φ = 2021122011010.

The previous prime is 2021122010983. The next prime is 2021122011023. The reversal of 2021122011011 is 1101102211202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021122011011 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021122011061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010561005505 + 1010561005506.

It is an arithmetic number, because the mean of its divisors is an integer number (1010561005506).

Almost surely, 2^{2021122011011} is an apocalyptic number.

2021122011011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021122011011 is an equidigital number, since it uses as much as digits as its factorization.

2021122011011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2021122011011 its reverse (1101102211202), we get a palindrome (3122224222213).

The spelling of 2021122011011 in words is "two trillion, twenty-one billion, one hundred twenty-two million, eleven thousand, eleven".