12011550001 has 8 divisors (see below), whose sum is σ = 13105077408. Its totient is φ = 10918284000.

The previous prime is 12011549999. The next prime is 12011550043. The reversal of 12011550001 is 10005511021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12011550001 - 2¹ = 12011549999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011550401) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 37821 + ... + 159541.

It is an arithmetic number, because the mean of its divisors is an integer number (1638134676).

Almost surely, 2^12011550001 is an apocalyptic number.

12011550001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12011550001 is a deficient number, since it is larger than the sum of its proper divisors (1093527407).

12011550001 is a wasteful number, since it uses less digits than its factorization.

12011550001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130703.

The product of its (nonzero) digits is 50, while the sum is 16.

The spelling of 12011550001 in words is "twelve billion, eleven million, five hundred fifty thousand, one".