20222011 has 2 divisors, whose sum is σ = 20222012. Its totient is φ = 20222010.

The previous prime is 20222003. The next prime is 20222021. The reversal of 20222011 is 11022202.

It is an a-pointer prime, because the next prime (20222021) can be obtained adding 20222011 to its sum of digits (10).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20222011 - 2³ = 20222003 is a prime.

It is not a weakly prime, because it can be changed into another prime (20222021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111005 + 10111006.

It is an arithmetic number, because the mean of its divisors is an integer number (10111006).

Almost surely, 2^20222011 is an apocalyptic number.

20222011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20222011 is an equidigital number, since it uses as much as digits as its factorization.

20222011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 20222011 is about 4496.8890357668. The cubic root of 20222011 is about 272.4424522867.

Adding to 20222011 its reverse (11022202), we get a palindrome (31244213).

It can be divided in two parts, 2022201 and 1, that added together give a palindrome (2022202).

The spelling of 20222011 in words is "twenty million, two hundred twenty-two thousand, eleven".