101220012211 has 2 divisors, whose sum is σ = 101220012212. Its totient is φ = 101220012210.

The previous prime is 101220012191. The next prime is 101220012233. The reversal of 101220012211 is 112210022101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101220012211 - 2¹¹ = 101220010163 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101220012191 and 101220012200.

It is not a weakly prime, because it can be changed into another prime (101220012251) 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, 50610006105 + 50610006106.

It is an arithmetic number, because the mean of its divisors is an integer number (50610006106).

Almost surely, 2^101220012211 is an apocalyptic number.

101220012211 is a deficient number, since it is larger than the sum of its proper divisors (1).

101220012211 is an equidigital number, since it uses as much as digits as its factorization.

101220012211 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 101220012211 its reverse (112210022101), we get a palindrome (213430034312).

The spelling of 101220012211 in words is "one hundred one billion, two hundred twenty million, twelve thousand, two hundred eleven".