11949235212 has 12 divisors (see below), whose sum is σ = 27881548856. Its totient is φ = 3983078400.

The previous prime is 11949235189. The next prime is 11949235229. The reversal of 11949235212 is 21253294911.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497884789 + ... + 497884812.

Almost surely, 2^11949235212 is an apocalyptic number.

11949235212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11949235212 is an abundant number, since it is smaller than the sum of its proper divisors (15932313644).

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

11949235212 is a wasteful number, since it uses less digits than its factorization.

11949235212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995769608 (or 995769606 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The spelling of 11949235212 in words is "eleven billion, nine hundred forty-nine million, two hundred thirty-five thousand, two hundred twelve".