111021211202147 has 2 divisors, whose sum is σ = 111021211202148. Its totient is φ = 111021211202146.

The previous prime is 111021211202119. The next prime is 111021211202149. The reversal of 111021211202147 is 741202112120111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111021211202147 - 2¹⁴ = 111021211185763 is a prime.

Together with 111021211202149, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111021211202149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55510605601073 + 55510605601074.

It is an arithmetic number, because the mean of its divisors is an integer number (55510605601074).

Almost surely, 2^{111021211202147} is an apocalyptic number.

111021211202147 is a deficient number, since it is larger than the sum of its proper divisors (1).

111021211202147 is an equidigital number, since it uses as much as digits as its factorization.

111021211202147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 26.

Adding to 111021211202147 its reverse (741202112120111), we get a palindrome (852223323322258).

The spelling of 111021211202147 in words is "one hundred eleven trillion, twenty-one billion, two hundred eleven million, two hundred two thousand, one hundred forty-seven".