10120212211111 has 2 divisors, whose sum is σ = 10120212211112. Its totient is φ = 10120212211110.

The previous prime is 10120212211013. The next prime is 10120212211159. The reversal of 10120212211111 is 11111221202101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10120212211111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10120212211511) 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, 5060106105555 + 5060106105556.

It is an arithmetic number, because the mean of its divisors is an integer number (5060106105556).

Almost surely, 2^{10120212211111} is an apocalyptic number.

10120212211111 is a deficient number, since it is larger than the sum of its proper divisors (1).

10120212211111 is an equidigital number, since it uses as much as digits as its factorization.

10120212211111 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 16.

Adding to 10120212211111 its reverse (11111221202101), we get a palindrome (21231433413212).

The spelling of 10120212211111 in words is "ten trillion, one hundred twenty billion, two hundred twelve million, two hundred eleven thousand, one hundred eleven".