10120211222111 has 2 divisors, whose sum is σ = 10120211222112. Its totient is φ = 10120211222110.

The previous prime is 10120211221963. The next prime is 10120211222129. The reversal of 10120211222111 is 11122211202101.

10120211222111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10120211222111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10120211222111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10120211222161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060105611055 + 5060105611056.

It is an arithmetic number, because the mean of its divisors is an integer number (5060105611056).

Almost surely, 2^{10120211222111} is an apocalyptic number.

10120211222111 is a deficient number, since it is larger than the sum of its proper divisors (1).

10120211222111 is an equidigital number, since it uses as much as digits as its factorization.

10120211222111 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 10120211222111 its reverse (11122211202101), we get a palindrome (21242422424212).

The spelling of 10120211222111 in words is "ten trillion, one hundred twenty billion, two hundred eleven million, two hundred twenty-two thousand, one hundred eleven".