1222789895 has 8 divisors (see below), whose sum is σ = 1467695040. Its totient is φ = 978000480.

The previous prime is 1222789853. The next prime is 1222789951. The reversal of 1222789895 is 5989872221.

1222789895 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1222789895 - 2¹² = 1222785799 is a prime.

It is a super-2 number, since 2×1222789895² = 2990430254628222050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3680 + ... + 49589.

It is an arithmetic number, because the mean of its divisors is an integer number (183461880).

Almost surely, 2^1222789895 is an apocalyptic number.

1222789895 is a deficient number, since it is larger than the sum of its proper divisors (244905145).

1222789895 is an equidigital number, since it uses as much as digits as its factorization.

1222789895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57865.

The product of its digits is 1451520, while the sum is 53.

The square root of 1222789895 is about 34968.4128178561. The cubic root of 1222789895 is about 1069.3436143709.

The spelling of 1222789895 in words is "one billion, two hundred twenty-two million, seven hundred eighty-nine thousand, eight hundred ninety-five".