221010200111 has 2 divisors, whose sum is σ = 221010200112. Its totient is φ = 221010200110.

The previous prime is 221010200093. The next prime is 221010200137. The reversal of 221010200111 is 111002010122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221010200111 - 2¹⁰ = 221010199087 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221010200092 and 221010200101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221010200141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110505100055 + 110505100056.

It is an arithmetic number, because the mean of its divisors is an integer number (110505100056).

Almost surely, 2^221010200111 is an apocalyptic number.

221010200111 is a deficient number, since it is larger than the sum of its proper divisors (1).

221010200111 is an equidigital number, since it uses as much as digits as its factorization.

221010200111 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 221010200111 its reverse (111002010122), we get a palindrome (332012210233).

The spelling of 221010200111 in words is "two hundred twenty-one billion, ten million, two hundred thousand, one hundred eleven".