1227359622912 has 144 divisors (see below), whose sum is σ = 3293036907552. Its totient is φ = 405813657600.

The previous prime is 1227359622899. The next prime is 1227359622917. The reversal of 1227359622912 is 2192269537221.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227359622917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72457708 + ... + 72474644.

It is an arithmetic number, because the mean of its divisors is an integer number (22868311858).

Almost surely, 2^{1227359622912} is an apocalyptic number.

1227359622912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1227359622912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1646518453776).

1227359622912 is an abundant number, since it is smaller than the sum of its proper divisors (2065677284640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1227359622912 is a wasteful number, since it uses less digits than its factorization.

1227359622912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17714 (or 17700 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 51.

The spelling of 1227359622912 in words is "one trillion, two hundred twenty-seven billion, three hundred fifty-nine million, six hundred twenty-two thousand, nine hundred twelve".