12011335988 has 12 divisors (see below), whose sum is σ = 21021058212. Its totient is φ = 6005319360.

The previous prime is 12011335969. The next prime is 12011335997. The reversal of 12011335988 is 88953311021.

It can be written as a sum of positive squares in 2 ways, for example, as 4009675684 + 8001660304 = 63322^2 + 89452^2 .

It is a super-2 number, since 2×12011335988² (a number of 21 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 56 + ... + 154992.

It is an arithmetic number, because the mean of its divisors is an integer number (1751754851).

Almost surely, 2^12011335988 is an apocalyptic number.

It is an amenable number.

12011335988 is a deficient number, since it is larger than the sum of its proper divisors (9009722224).

12011335988 is a wasteful number, since it uses less digits than its factorization.

12011335988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174322 (or 174320 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 41.

The spelling of 12011335988 in words is "twelve billion, eleven million, three hundred thirty-five thousand, nine hundred eighty-eight".