1227396012 has 48 divisors (see below), whose sum is σ = 3029429760. Its totient is φ = 385976448.

The previous prime is 1227396011. The next prime is 1227396041. The reversal of 1227396012 is 2106937221.

It is not an unprimeable number, because it can be changed into a prime (1227396011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10312 + ... + 50607.

It is an arithmetic number, because the mean of its divisors is an integer number (63113120).

Almost surely, 2^1227396012 is an apocalyptic number.

1227396012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1227396012 is an abundant number, since it is smaller than the sum of its proper divisors (1802033748).

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

1227396012 is a wasteful number, since it uses less digits than its factorization.

1227396012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61022 (or 61020 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 1227396012 is about 35034.2120219650. The cubic root of 1227396012 is about 1070.6846324520.

The spelling of 1227396012 in words is "one billion, two hundred twenty-seven million, three hundred ninety-six thousand, twelve".