1222164371899 has 8 divisors (see below), whose sum is σ = 1265733372960. Its totient is φ = 1178690397696.

The previous prime is 1222164371887. The next prime is 1222164371903. The reversal of 1222164371899 is 9981734612221.

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

It is a cyclic number.

It is not a de Polignac number, because 1222164371899 - 2¹⁷ = 1222164240827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222164371599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23730534 + ... + 23781979.

It is an arithmetic number, because the mean of its divisors is an integer number (158216671620).

Almost surely, 2^{1222164371899} is an apocalyptic number.

1222164371899 is a deficient number, since it is larger than the sum of its proper divisors (43569001061).

1222164371899 is an equidigital number, since it uses as much as digits as its factorization.

1222164371899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47513429.

The product of its digits is 2612736, while the sum is 55.

The spelling of 1222164371899 in words is "one trillion, two hundred twenty-two billion, one hundred sixty-four million, three hundred seventy-one thousand, eight hundred ninety-nine".