2012121021211 has 8 divisors (see below), whose sum is σ = 2333888775680. Its totient is φ = 1698933740328.

The previous prime is 2012121021193. The next prime is 2012121021217. The reversal of 2012121021211 is 1121201212102.

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 2012121021211 - 2⁷ = 2012121021083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2012121021217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2145117891 + ... + 2145118828.

It is an arithmetic number, because the mean of its divisors is an integer number (291736096960).

Almost surely, 2^{2012121021211} is an apocalyptic number.

2012121021211 is a deficient number, since it is larger than the sum of its proper divisors (321767754469).

2012121021211 is an equidigital number, since it uses as much as digits as its factorization.

2012121021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4290236793.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2012121021211 its reverse (1121201212102), we get a palindrome (3133322233313).

The spelling of 2012121021211 in words is "two trillion, twelve billion, one hundred twenty-one million, twenty-one thousand, two hundred eleven".