1210201010111 has 2 divisors, whose sum is σ = 1210201010112. Its totient is φ = 1210201010110.

The previous prime is 1210201010069. The next prime is 1210201010143. The reversal of 1210201010111 is 1110101020121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1210201010111 - 2¹⁸ = 1210200747967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1210201010092 and 1210201010101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210201010411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605100505055 + 605100505056.

It is an arithmetic number, because the mean of its divisors is an integer number (605100505056).

Almost surely, 2^{1210201010111} is an apocalyptic number.

1210201010111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210201010111 is an equidigital number, since it uses as much as digits as its factorization.

1210201010111 is an evil number, because the sum of its binary digits is even.

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

Adding to 1210201010111 its reverse (1110101020121), we get a palindrome (2320302030232).

The spelling of 1210201010111 in words is "one trillion, two hundred ten billion, two hundred one million, ten thousand, one hundred eleven".