111121222101137 has 2 divisors, whose sum is σ = 111121222101138. Its totient is φ = 111121222101136.

The previous prime is 111121222101091. The next prime is 111121222101161. The reversal of 111121222101137 is 731101222121111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56462540392336 + 54658681708801 = 7514156^2 + 7393151^2 .

It is a cyclic number.

It is not a de Polignac number, because 111121222101137 - 2¹⁴ = 111121222084753 is a prime.

It is not a weakly prime, because it can be changed into another prime (111121222103137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55560611050568 + 55560611050569.

It is an arithmetic number, because the mean of its divisors is an integer number (55560611050569).

Almost surely, 2^{111121222101137} is an apocalyptic number.

It is an amenable number.

111121222101137 is a deficient number, since it is larger than the sum of its proper divisors (1).

111121222101137 is an equidigital number, since it uses as much as digits as its factorization.

111121222101137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 26.

Adding to 111121222101137 its reverse (731101222121111), we get a palindrome (842222444222248).

The spelling of 111121222101137 in words is "one hundred eleven trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred one thousand, one hundred thirty-seven".