111152211101 has 2 divisors, whose sum is σ = 111152211102. Its totient is φ = 111152211100.

The previous prime is 111152211043. The next prime is 111152211109. The reversal of 111152211101 is 101112251111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107564320900 + 3587890201 = 327970^2 + 59899^2 .

It is an emirp because it is prime and its reverse (101112251111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111152211101 - 2¹⁴ = 111152194717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111152211101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111152211109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55576105550 + 55576105551.

It is an arithmetic number, because the mean of its divisors is an integer number (55576105551).

Almost surely, 2^111152211101 is an apocalyptic number.

It is an amenable number.

111152211101 is a deficient number, since it is larger than the sum of its proper divisors (1).

111152211101 is an equidigital number, since it uses as much as digits as its factorization.

111152211101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20, while the sum is 17.

Adding to 111152211101 its reverse (101112251111), we get a palindrome (212264462212).

The spelling of 111152211101 in words is "one hundred eleven billion, one hundred fifty-two million, two hundred eleven thousand, one hundred one".