20120211120211 has 2 divisors, whose sum is σ = 20120211120212. Its totient is φ = 20120211120210.

The previous prime is 20120211120187. The next prime is 20120211120271. The reversal of 20120211120211 is 11202111202102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20120211120211 - 2²¹ = 20120209023059 is a prime.

It is not a weakly prime, because it can be changed into another prime (20120211120271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060105560105 + 10060105560106.

It is an arithmetic number, because the mean of its divisors is an integer number (10060105560106).

Almost surely, 2^{20120211120211} is an apocalyptic number.

20120211120211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120211120211 is an equidigital number, since it uses as much as digits as its factorization.

20120211120211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20120211120211 its reverse (11202111202102), we get a palindrome (31322322322313).

The spelling of 20120211120211 in words is "twenty trillion, one hundred twenty billion, two hundred eleven million, one hundred twenty thousand, two hundred eleven".