2212424404021 has 8 divisors (see below), whose sum is σ = 2382688107800. Its totient is φ = 2042171730432.

The previous prime is 2212424403997. The next prime is 2212424404103. The reversal of 2212424404021 is 1204044242122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 190087280100 + 2022337123921 = 435990^2 + 1422089^2 .

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 2212424404021 - 2⁹ = 2212424403509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212424404621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2338596 + ... + 3145453.

It is an arithmetic number, because the mean of its divisors is an integer number (297836013475).

Almost surely, 2^{2212424404021} is an apocalyptic number.

It is an amenable number.

2212424404021 is a deficient number, since it is larger than the sum of its proper divisors (170263703779).

2212424404021 is a wasteful number, since it uses less digits than its factorization.

2212424404021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5515095.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 2212424404021 its reverse (1204044242122), we get a palindrome (3416468646143).

The spelling of 2212424404021 in words is "two trillion, two hundred twelve billion, four hundred twenty-four million, four hundred four thousand, twenty-one".