941170221989 has 2 divisors, whose sum is σ = 941170221990. Its totient is φ = 941170221988.

The previous prime is 941170221977. The next prime is 941170222021. The reversal of 941170221989 is 989122071149.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 916413717025 + 24756504964 = 957295^2 + 157342^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-941170221989 is a prime.

It is a super-2 number, since 2×941170221989² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 941170221989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (941170221919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470585110994 + 470585110995.

It is an arithmetic number, because the mean of its divisors is an integer number (470585110995).

Almost surely, 2^941170221989 is an apocalyptic number.

It is an amenable number.

941170221989 is a deficient number, since it is larger than the sum of its proper divisors (1).

941170221989 is an equidigital number, since it uses as much as digits as its factorization.

941170221989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 53.

The spelling of 941170221989 in words is "nine hundred forty-one billion, one hundred seventy million, two hundred twenty-one thousand, nine hundred eighty-nine".