20222011120021 has 2 divisors, whose sum is σ = 20222011120022. Its totient is φ = 20222011120020.

The previous prime is 20222011120013. The next prime is 20222011120057. The reversal of 20222011120021 is 12002111022202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17090898564996 + 3131112555025 = 4134114^2 + 1769495^2 .

It is a cyclic number.

It is not a de Polignac number, because 20222011120021 - 2³ = 20222011120013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20222011119977 and 20222011120004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20222011120061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111005560010 + 10111005560011.

It is an arithmetic number, because the mean of its divisors is an integer number (10111005560011).

Almost surely, 2^{20222011120021} is an apocalyptic number.

It is an amenable number.

20222011120021 is a deficient number, since it is larger than the sum of its proper divisors (1).

20222011120021 is an equidigital number, since it uses as much as digits as its factorization.

20222011120021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20222011120021 its reverse (12002111022202), we get a palindrome (32224122142223).

The spelling of 20222011120021 in words is "twenty trillion, two hundred twenty-two billion, eleven million, one hundred twenty thousand, twenty-one".