111022120789 has 2 divisors, whose sum is σ = 111022120790. Its totient is φ = 111022120788.

The previous prime is 111022120771. The next prime is 111022120817. The reversal of 111022120789 is 987021220111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74381652900 + 36640467889 = 272730^2 + 191417^2 .

It is a cyclic number.

It is not a de Polignac number, because 111022120789 - 2²¹ = 111020023637 is a prime.

It is a super-2 number, since 2×111022120789² (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 (111022120189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55511060394 + 55511060395.

It is an arithmetic number, because the mean of its divisors is an integer number (55511060395).

Almost surely, 2^111022120789 is an apocalyptic number.

It is an amenable number.

111022120789 is a deficient number, since it is larger than the sum of its proper divisors (1).

111022120789 is an equidigital number, since it uses as much as digits as its factorization.

111022120789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 34.

The spelling of 111022120789 in words is "one hundred eleven billion, twenty-two million, one hundred twenty thousand, seven hundred eighty-nine".