1208791212 has 24 divisors (see below), whose sum is σ = 2834835696. Its totient is φ = 400884288.

The previous prime is 1208791187. The next prime is 1208791217. The reversal of 1208791212 is 2121978021.

It is a super-2 number, since 2×1208791212² = 2922352388416857888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1208791217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253303 + ... + 258030.

It is an arithmetic number, because the mean of its divisors is an integer number (118118154).

Almost surely, 2^1208791212 is an apocalyptic number.

1208791212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1208791212 is an abundant number, since it is smaller than the sum of its proper divisors (1626044484).

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

1208791212 is a wasteful number, since it uses less digits than its factorization.

1208791212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511537 (or 511535 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 1208791212 is about 34767.6748144020. The cubic root of 1208791212 is about 1065.2472735801.

The spelling of 1208791212 in words is "one billion, two hundred eight million, seven hundred ninety-one thousand, two hundred twelve".