20221122011 has 2 divisors, whose sum is σ = 20221122012. Its totient is φ = 20221122010.

The previous prime is 20221121953. The next prime is 20221122013. The reversal of 20221122011 is 11022112202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20221122011 is a prime.

It is a Sophie Germain prime.

Together with 20221122013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20221122013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110561005 + 10110561006.

It is an arithmetic number, because the mean of its divisors is an integer number (10110561006).

Almost surely, 2^20221122011 is an apocalyptic number.

20221122011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221122011 is an equidigital number, since it uses as much as digits as its factorization.

20221122011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20221122011 its reverse (11022112202), we get a palindrome (31243234213).

It can be divided in two parts, 2022112201 and 1, that added together give a palindrome (2022112202).

The spelling of 20221122011 in words is "twenty billion, two hundred twenty-one million, one hundred twenty-two thousand, eleven".