10111221101 has 2 divisors, whose sum is σ = 10111221102. Its totient is φ = 10111221100.

The previous prime is 10111221083. The next prime is 10111221119. The reversal of 10111221101 is 10112211101.

It is a balanced prime because it is at equal distance from previous prime (10111221083) and next prime (10111221119).

It can be written as a sum of positive squares in only one way, i.e., 9946072900 + 165148201 = 99730^2 + 12851^2 .

It is an emirp because it is prime and its reverse (10112211101) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10111221101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10111221181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055610550 + 5055610551.

It is an arithmetic number, because the mean of its divisors is an integer number (5055610551).

Almost surely, 2^10111221101 is an apocalyptic number.

It is an amenable number.

10111221101 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111221101 is an equidigital number, since it uses as much as digits as its factorization.

10111221101 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 10111221101 its reverse (10112211101), we get a palindrome (20223432202).

The spelling of 10111221101 in words is "ten billion, one hundred eleven million, two hundred twenty-one thousand, one hundred one".