1227288994932 has 1536 divisors, whose sum is σ = 4447921766400. Its totient is φ = 252912844800.

The previous prime is 1227288994903. The next prime is 1227288994963. The reversal of 1227288994932 is 2394998827221.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 13789763944 + ... + 13789764032.

It is an arithmetic number, because the mean of its divisors is an integer number (2895782400).

Almost surely, 2^{1227288994932} is an apocalyptic number.

1227288994932 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 1227288994932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2223960883200).

1227288994932 is an abundant number, since it is smaller than the sum of its proper divisors (3220632771468).

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

1227288994932 is a wasteful number, since it uses less digits than its factorization.

1227288994932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 275 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 66.

The spelling of 1227288994932 in words is "one trillion, two hundred twenty-seven billion, two hundred eighty-eight million, nine hundred ninety-four thousand, nine hundred thirty-two".