20120112211 has 2 divisors, whose sum is σ = 20120112212. Its totient is φ = 20120112210.

The previous prime is 20120112203. The next prime is 20120112277. The reversal of 20120112211 is 11221102102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20120112211 - 2³ = 20120112203 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20120112191 and 20120112200.

It is not a weakly prime, because it can be changed into another prime (20120112281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060056105 + 10060056106.

It is an arithmetic number, because the mean of its divisors is an integer number (10060056106).

Almost surely, 2^20120112211 is an apocalyptic number.

20120112211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120112211 is an equidigital number, since it uses as much as digits as its factorization.

20120112211 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 13.

Adding to 20120112211 its reverse (11221102102), we get a palindrome (31341214313).

The spelling of 20120112211 in words is "twenty billion, one hundred twenty million, one hundred twelve thousand, two hundred eleven".