20033122211 has 2 divisors, whose sum is σ = 20033122212. Its totient is φ = 20033122210.

The previous prime is 20033122147. The next prime is 20033122223. The reversal of 20033122211 is 11222133002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20033122211 - 2⁶ = 20033122147 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20033122211.

It is not a weakly prime, because it can be changed into another prime (20033122231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10016561105 + 10016561106.

It is an arithmetic number, because the mean of its divisors is an integer number (10016561106).

Almost surely, 2^20033122211 is an apocalyptic number.

20033122211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20033122211 is an equidigital number, since it uses as much as digits as its factorization.

20033122211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20033122211 its reverse (11222133002), we get a palindrome (31255255213).

The spelling of 20033122211 in words is "twenty billion, thirty-three million, one hundred twenty-two thousand, two hundred eleven".