20112122207 has 2 divisors, whose sum is σ = 20112122208. Its totient is φ = 20112122206.

The previous prime is 20112122203. The next prime is 20112122249. The reversal of 20112122207 is 70222121102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20112122207 - 2² = 20112122203 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112122203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056061103 + 10056061104.

It is an arithmetic number, because the mean of its divisors is an integer number (10056061104).

Almost surely, 2^20112122207 is an apocalyptic number.

20112122207 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112122207 is an equidigital number, since it uses as much as digits as its factorization.

20112122207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 20112122207 its reverse (70222121102), we get a palindrome (90334243309).

The spelling of 20112122207 in words is "twenty billion, one hundred twelve million, one hundred twenty-two thousand, two hundred seven".