20122211233 has 2 divisors, whose sum is σ = 20122211234. Its totient is φ = 20122211232.

The previous prime is 20122211203. The next prime is 20122211303. The reversal of 20122211233 is 33211222102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19729854369 + 392356864 = 140463^2 + 19808^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122211233 - 2⁵ = 20122211201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20122211233.

It is not a weakly prime, because it can be changed into another prime (20122211203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061105616 + 10061105617.

It is an arithmetic number, because the mean of its divisors is an integer number (10061105617).

Almost surely, 2^20122211233 is an apocalyptic number.

It is an amenable number.

20122211233 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122211233 is an equidigital number, since it uses as much as digits as its factorization.

20122211233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20122211233 its reverse (33211222102), we get a palindrome (53333433335).

The spelling of 20122211233 in words is "twenty billion, one hundred twenty-two million, two hundred eleven thousand, two hundred thirty-three".