2212121301121 has 8 divisors (see below), whose sum is σ = 2254173865704. Its totient is φ = 2170080382080.

The previous prime is 2212121301113. The next prime is 2212121301151. The reversal of 2212121301121 is 1211031212122.

It can be written as a sum of positive squares in 4 ways, for example, as 344908369521 + 1867212931600 = 587289^2 + 1366460^2 .

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 2212121301121 - 2³ = 2212121301113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212121301151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2527390 + ... + 3288151.

It is an arithmetic number, because the mean of its divisors is an integer number (281771733213).

Almost surely, 2^{2212121301121} is an apocalyptic number.

It is an amenable number.

2212121301121 is a deficient number, since it is larger than the sum of its proper divisors (42052564583).

2212121301121 is an equidigital number, since it uses as much as digits as its factorization.

2212121301121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5822771.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 2212121301121 its reverse (1211031212122), we get a palindrome (3423152513243).

The spelling of 2212121301121 in words is "two trillion, two hundred twelve billion, one hundred twenty-one million, three hundred one thousand, one hundred twenty-one".