100221012020111 has 2 divisors, whose sum is σ = 100221012020112. Its totient is φ = 100221012020110.

The previous prime is 100221012020089. The next prime is 100221012020113. The reversal of 100221012020111 is 111020210122001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100221012020111 - 2¹⁸ = 100221011757967 is a prime.

Together with 100221012020113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100221012020113) 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, 50110506010055 + 50110506010056.

It is an arithmetic number, because the mean of its divisors is an integer number (50110506010056).

Almost surely, 2^{100221012020111} is an apocalyptic number.

100221012020111 is a deficient number, since it is larger than the sum of its proper divisors (1).

100221012020111 is an equidigital number, since it uses as much as digits as its factorization.

100221012020111 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 14.

Adding to 100221012020111 its reverse (111020210122001), we get a palindrome (211241222142112).

The spelling of 100221012020111 in words is "one hundred trillion, two hundred twenty-one billion, twelve million, twenty thousand, one hundred eleven".