1227622556159 has 4 divisors (see below), whose sum is σ = 1227832663416. Its totient is φ = 1227412448904.

The previous prime is 1227622556141. The next prime is 1227622556161. The reversal of 1227622556159 is 9516552267221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1227622556159 - 2²⁸ = 1227354120703 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1227622556159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227622556059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105044864 + ... + 105056549.

It is an arithmetic number, because the mean of its divisors is an integer number (306958165854).

Almost surely, 2^{1227622556159} is an apocalyptic number.

1227622556159 is a deficient number, since it is larger than the sum of its proper divisors (210107257).

1227622556159 is an equidigital number, since it uses as much as digits as its factorization.

1227622556159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210107256.

The product of its digits is 4536000, while the sum is 53.

The spelling of 1227622556159 in words is "one trillion, two hundred twenty-seven billion, six hundred twenty-two million, five hundred fifty-six thousand, one hundred fifty-nine".