2122012221001 has 4 divisors (see below), whose sum is σ = 2126802316752. Its totient is φ = 2117222125252.

The previous prime is 2122012220921. The next prime is 2122012221031. The reversal of 2122012221001 is 1001222102212.

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 2122012221001 - 2⁷ = 2122012220873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122012221031) 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, 2395047211 + ... + 2395048096.

It is an arithmetic number, because the mean of its divisors is an integer number (531700579188).

Almost surely, 2^{2122012221001} is an apocalyptic number.

It is an amenable number.

2122012221001 is a deficient number, since it is larger than the sum of its proper divisors (4790095751).

2122012221001 is an equidigital number, since it uses as much as digits as its factorization.

2122012221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4790095750.

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

Adding to 2122012221001 its reverse (1001222102212), we get a palindrome (3123234323213).

It can be divided in two parts, 21 and 22012221001, that added together give a palindrome (22012221022).

The spelling of 2122012221001 in words is "two trillion, one hundred twenty-two billion, twelve million, two hundred twenty-one thousand, one".