12120211092 has 48 divisors (see below), whose sum is σ = 30860121600. Its totient is φ = 3671758560.

The previous prime is 12120211079. The next prime is 12120211121. The reversal of 12120211092 is 29011202121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 551409 + ... + 572967.

It is an arithmetic number, because the mean of its divisors is an integer number (642919200).

Almost surely, 2^12120211092 is an apocalyptic number.

12120211092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12120211092 is an abundant number, since it is smaller than the sum of its proper divisors (18739910508).

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

12120211092 is a wasteful number, since it uses less digits than its factorization.

12120211092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25836 (or 25834 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 12120211092 in words is "twelve billion, one hundred twenty million, two hundred eleven thousand, ninety-two".