20210020222011 has 16 divisors (see below), whose sum is σ = 27633260782080. Its totient is φ = 13134327631040.

The previous prime is 20210020221991. The next prime is 20210020222043. The reversal of 20210020222011 is 11022202001202.

It is a cyclic number.

It is not a de Polignac number, because 20210020222011 - 2¹⁸ = 20210019959867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20210020222081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 533030055 + ... + 533067968.

It is an arithmetic number, because the mean of its divisors is an integer number (1727078798880).

Almost surely, 2^{20210020222011} is an apocalyptic number.

20210020222011 is a deficient number, since it is larger than the sum of its proper divisors (7423240560069).

20210020222011 is a wasteful number, since it uses less digits than its factorization.

20210020222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066098186.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20210020222011 its reverse (11022202001202), we get a palindrome (31232222223213).

The spelling of 20210020222011 in words is "twenty trillion, two hundred ten billion, twenty million, two hundred twenty-two thousand, eleven".