2012220121201 has 4 divisors (see below), whose sum is σ = 2013262184304. Its totient is φ = 2011178058100.

The previous prime is 2012220121183. The next prime is 2012220121297. The reversal of 2012220121201 is 1021210222102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2012220121201 - 2³³ = 2003630186609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012220122201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521028655 + ... + 521032516.

It is an arithmetic number, because the mean of its divisors is an integer number (503315546076).

Almost surely, 2^{2012220121201} is an apocalyptic number.

It is an amenable number.

2012220121201 is a deficient number, since it is larger than the sum of its proper divisors (1042063103).

2012220121201 is a wasteful number, since it uses less digits than its factorization.

2012220121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042063102.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2012220121201 its reverse (1021210222102), we get a palindrome (3033430343303).

The spelling of 2012220121201 in words is "two trillion, twelve billion, two hundred twenty million, one hundred twenty-one thousand, two hundred one".