1222164834477 has 8 divisors (see below), whose sum is σ = 1700403248064. Its totient is φ = 779351488608.

The previous prime is 1222164834469. The next prime is 1222164834491. The reversal of 1222164834477 is 7744384612221.

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

It is not a de Polignac number, because 1222164834477 - 2³ = 1222164834469 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222164834437) 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, 8856266848 + ... + 8856266985.

It is an arithmetic number, because the mean of its divisors is an integer number (212550406008).

Almost surely, 2^{1222164834477} is an apocalyptic number.

It is an amenable number.

1222164834477 is a deficient number, since it is larger than the sum of its proper divisors (478238413587).

1222164834477 is a wasteful number, since it uses less digits than its factorization.

1222164834477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17712533859.

The product of its digits is 3612672, while the sum is 51.

The spelling of 1222164834477 in words is "one trillion, two hundred twenty-two billion, one hundred sixty-four million, eight hundred thirty-four thousand, four hundred seventy-seven".