111021001111201 has 2 divisors, whose sum is σ = 111021001111202. Its totient is φ = 111021001111200.

The previous prime is 111021001111183. The next prime is 111021001111301. The reversal of 111021001111201 is 102111100120111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108358752021601 + 2662249089600 = 10409551^2 + 1631640^2 .

It is a cyclic number.

It is not a de Polignac number, because 111021001111201 - 2⁵ = 111021001111169 is a prime.

It is not a weakly prime, because it can be changed into another prime (111021001111301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55510500555600 + 55510500555601.

It is an arithmetic number, because the mean of its divisors is an integer number (55510500555601).

Almost surely, 2^{111021001111201} is an apocalyptic number.

It is an amenable number.

111021001111201 is a deficient number, since it is larger than the sum of its proper divisors (1).

111021001111201 is an equidigital number, since it uses as much as digits as its factorization.

111021001111201 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 13.

Adding to 111021001111201 its reverse (102111100120111), we get a palindrome (213132101231312).

The spelling of 111021001111201 in words is "one hundred eleven trillion, twenty-one billion, one million, one hundred eleven thousand, two hundred one".