12011331010121 has 8 divisors (see below), whose sum is σ = 12015784360800. Its totient is φ = 12006878158432.

The previous prime is 12011331010109. The next prime is 12011331010193. The reversal of 12011331010121 is 12101013311021.

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 12011331010121 - 2³⁰ = 12010257268297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12011331010121.

It is not an unprimeable number, because it can be changed into a prime (12011331015121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52018901 + ... + 52249293.

It is an arithmetic number, because the mean of its divisors is an integer number (1501973045100).

Almost surely, 2^{12011331010121} is an apocalyptic number.

It is an amenable number.

12011331010121 is a deficient number, since it is larger than the sum of its proper divisors (4453350679).

12011331010121 is a wasteful number, since it uses less digits than its factorization.

12011331010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249495.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 12011331010121 its reverse (12101013311021), we get a palindrome (24112344321142).

The spelling of 12011331010121 in words is "twelve trillion, eleven billion, three hundred thirty-one million, ten thousand, one hundred twenty-one".