10001221130111 has 2 divisors, whose sum is σ = 10001221130112. Its totient is φ = 10001221130110.

The previous prime is 10001221130053. The next prime is 10001221130137. The reversal of 10001221130111 is 11103112210001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10001221130111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10001221130141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000610565055 + 5000610565056.

It is an arithmetic number, because the mean of its divisors is an integer number (5000610565056).

Almost surely, 2^{10001221130111} is an apocalyptic number.

10001221130111 is a deficient number, since it is larger than the sum of its proper divisors (1).

10001221130111 is an equidigital number, since it uses as much as digits as its factorization.

10001221130111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 10001221130111 its reverse (11103112210001), we get a palindrome (21104333340112).

The spelling of 10001221130111 in words is "ten trillion, one billion, two hundred twenty-one million, one hundred thirty thousand, one hundred eleven".