2011002122121 has 8 divisors (see below), whose sum is σ = 2719101461184. Its totient is φ = 1321785432240.

The previous prime is 2011002122111. The next prime is 2011002122137. The reversal of 2011002122121 is 1212212001102.

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

It is not a de Polignac number, because 2011002122121 - 2¹⁰ = 2011002121097 is a prime.

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 2011002122121.

It is not an unprimeable number, because it can be changed into a prime (2011002122111) 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, 4720662046 + ... + 4720662471.

It is an arithmetic number, because the mean of its divisors is an integer number (339887682648).

Almost surely, 2^{2011002122121} is an apocalyptic number.

It is an amenable number.

2011002122121 is a deficient number, since it is larger than the sum of its proper divisors (708099339063).

2011002122121 is an equidigital number, since it uses as much as digits as its factorization.

2011002122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9441324591.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2011002122121 its reverse (1212212001102), we get a palindrome (3223214123223).

The spelling of 2011002122121 in words is "two trillion, eleven billion, two million, one hundred twenty-two thousand, one hundred twenty-one".