111221003189 has 2 divisors, whose sum is σ = 111221003190. Its totient is φ = 111221003188.

The previous prime is 111221003143. The next prime is 111221003233. The reversal of 111221003189 is 981300122111.

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., 59040738289 + 52180264900 = 242983^2 + 228430^2 .

It is a cyclic number.

It is not a de Polignac number, because 111221003189 - 2⁸ = 111221002933 is a prime.

It is a super-2 number, since 2×111221003189² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111221003489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55610501594 + 55610501595.

It is an arithmetic number, because the mean of its divisors is an integer number (55610501595).

Almost surely, 2^111221003189 is an apocalyptic number.

It is an amenable number.

111221003189 is a deficient number, since it is larger than the sum of its proper divisors (1).

111221003189 is an equidigital number, since it uses as much as digits as its factorization.

111221003189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 29.

The spelling of 111221003189 in words is "one hundred eleven billion, two hundred twenty-one million, three thousand, one hundred eighty-nine".