20121100020211 has 2 divisors, whose sum is σ = 20121100020212. Its totient is φ = 20121100020210.

The previous prime is 20121100020097. The next prime is 20121100020223. The reversal of 20121100020211 is 11202000112102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20121100020211 - 2⁷ = 20121100020083 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20121100020191 and 20121100020200.

It is not a weakly prime, because it can be changed into another prime (20121100020251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060550010105 + 10060550010106.

It is an arithmetic number, because the mean of its divisors is an integer number (10060550010106).

Almost surely, 2^{20121100020211} is an apocalyptic number.

20121100020211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20121100020211 is an equidigital number, since it uses as much as digits as its factorization.

20121100020211 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 20121100020211 its reverse (11202000112102), we get a palindrome (31323100132313).

The spelling of 20121100020211 in words is "twenty trillion, one hundred twenty-one billion, one hundred million, twenty thousand, two hundred eleven".