100201221221111 has 2 divisors, whose sum is σ = 100201221221112. Its totient is φ = 100201221221110.

The previous prime is 100201221221069. The next prime is 100201221221117. The reversal of 100201221221111 is 111122122102001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100201221221111 - 2¹⁸ = 100201220958967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100201221221111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100201221221117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50100610610555 + 50100610610556.

It is an arithmetic number, because the mean of its divisors is an integer number (50100610610556).

Almost surely, 2^{100201221221111} is an apocalyptic number.

100201221221111 is a deficient number, since it is larger than the sum of its proper divisors (1).

100201221221111 is an equidigital number, since it uses as much as digits as its factorization.

100201221221111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 100201221221111 its reverse (111122122102001), we get a palindrome (211323343323112).

The spelling of 100201221221111 in words is "one hundred trillion, two hundred one billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred eleven".