201011210111 has 2 divisors, whose sum is σ = 201011210112. Its totient is φ = 201011210110.

The previous prime is 201011210069. The next prime is 201011210137. The reversal of 201011210111 is 111012110102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201011210111 - 2⁶ = 201011210047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201011210092 and 201011210101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201011210311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100505605055 + 100505605056.

It is an arithmetic number, because the mean of its divisors is an integer number (100505605056).

Almost surely, 2^201011210111 is an apocalyptic number.

201011210111 is a deficient number, since it is larger than the sum of its proper divisors (1).

201011210111 is an equidigital number, since it uses as much as digits as its factorization.

201011210111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 201011210111 its reverse (111012110102), we get a palindrome (312023320213).

The spelling of 201011210111 in words is "two hundred one billion, eleven million, two hundred ten thousand, one hundred eleven".