1222289001789 has 8 divisors (see below), whose sum is σ = 1667619103392. Its totient is φ = 795909117360.

The previous prime is 1222289001751. The next prime is 1222289001797. The reversal of 1222289001789 is 9871009822221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1222289001789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222289001749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4737554142 + ... + 4737554399.

It is an arithmetic number, because the mean of its divisors is an integer number (208452387924).

Almost surely, 2^{1222289001789} is an apocalyptic number.

It is an amenable number.

1222289001789 is a deficient number, since it is larger than the sum of its proper divisors (445330101603).

1222289001789 is an equidigital number, since it uses as much as digits as its factorization.

1222289001789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9475108587.

The product of its (nonzero) digits is 580608, while the sum is 51.

The spelling of 1222289001789 in words is "one trillion, two hundred twenty-two billion, two hundred eighty-nine million, one thousand, seven hundred eighty-nine".