12011010211001 has 4 divisors (see below), whose sum is σ = 12303961679604. Its totient is φ = 11718058742400.

The previous prime is 12011010210989. The next prime is 12011010211033. The reversal of 12011010211001 is 10011201011021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4325667870976 + 7685342340025 = 2079824^2 + 2772245^2 .

It is a cyclic number.

It is not a de Polignac number, because 12011010211001 - 2²² = 12011006016697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011010211091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146475734240 + ... + 146475734321.

It is an arithmetic number, because the mean of its divisors is an integer number (3075990419901).

Almost surely, 2^{12011010211001} is an apocalyptic number.

It is an amenable number.

12011010211001 is a deficient number, since it is larger than the sum of its proper divisors (292951468603).

12011010211001 is an equidigital number, since it uses as much as digits as its factorization.

12011010211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292951468602.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 12011010211001 its reverse (10011201011021), we get a palindrome (22022211222022).

The spelling of 12011010211001 in words is "twelve trillion, eleven billion, ten million, two hundred eleven thousand, one".