1227474894912 has 224 divisors, whose sum is σ = 3866545520640. Its totient is φ = 336279029760.

The previous prime is 1227474894887. The next prime is 1227474894917. The reversal of 1227474894912 is 2194984747221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (224).

It is not an unprimeable number, because it can be changed into a prime (1227474894917) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4406233 + ... + 4676519.

Almost surely, 2^{1227474894912} is an apocalyptic number.

1227474894912 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 1227474894912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1933272760320).

1227474894912 is an abundant number, since it is smaller than the sum of its proper divisors (2639070625728).

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

1227474894912 is a wasteful number, since it uses less digits than its factorization.

1227474894912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270449 (or 270439 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 60.

The spelling of 1227474894912 in words is "one trillion, two hundred twenty-seven billion, four hundred seventy-four million, eight hundred ninety-four thousand, nine hundred twelve".