111200021147 has 2 divisors, whose sum is σ = 111200021148. Its totient is φ = 111200021146.

The previous prime is 111200021047. The next prime is 111200021227. The reversal of 111200021147 is 741120002111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111200021147 - 2²⁶ = 111132912283 is a prime.

It is not a weakly prime, because it can be changed into another prime (111200021047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55600010573 + 55600010574.

It is an arithmetic number, because the mean of its divisors is an integer number (55600010574).

Almost surely, 2^111200021147 is an apocalyptic number.

111200021147 is a deficient number, since it is larger than the sum of its proper divisors (1).

111200021147 is an equidigital number, since it uses as much as digits as its factorization.

111200021147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 111200021147 its reverse (741120002111), we get a palindrome (852320023258).

The spelling of 111200021147 in words is "one hundred eleven billion, two hundred million, twenty-one thousand, one hundred forty-seven".