101211223331111 has 2 divisors, whose sum is σ = 101211223331112. Its totient is φ = 101211223331110.

The previous prime is 101211223331093. The next prime is 101211223331129. The reversal of 101211223331111 is 111133322112101.

It is a balanced prime because it is at equal distance from previous prime (101211223331093) and next prime (101211223331129).

It is an emirp because it is prime and its reverse (111133322112101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101211223331111 - 2⁶ = 101211223331047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101211223331161) 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, 50605611665555 + 50605611665556.

It is an arithmetic number, because the mean of its divisors is an integer number (50605611665556).

Almost surely, 2^{101211223331111} is an apocalyptic number.

101211223331111 is a deficient number, since it is larger than the sum of its proper divisors (1).

101211223331111 is an equidigital number, since it uses as much as digits as its factorization.

101211223331111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 23.

Adding to 101211223331111 its reverse (111133322112101), we get a palindrome (212344545443212).

The spelling of 101211223331111 in words is "one hundred one trillion, two hundred eleven billion, two hundred twenty-three million, three hundred thirty-one thousand, one hundred eleven".