101221200011 has 2 divisors, whose sum is σ = 101221200012. Its totient is φ = 101221200010.

The previous prime is 101221200007. The next prime is 101221200053. The reversal of 101221200011 is 110002122101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101221200011 - 2² = 101221200007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101221199965 and 101221200001.

It is not a weakly prime, because it can be changed into another prime (101221203011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610600005 + 50610600006.

It is an arithmetic number, because the mean of its divisors is an integer number (50610600006).

Almost surely, 2^101221200011 is an apocalyptic number.

101221200011 is a deficient number, since it is larger than the sum of its proper divisors (1).

101221200011 is an equidigital number, since it uses as much as digits as its factorization.

101221200011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 101221200011 its reverse (110002122101), we get a palindrome (211223322112).

The spelling of 101221200011 in words is "one hundred one billion, two hundred twenty-one million, two hundred thousand, eleven".