2122004043221 has 8 divisors (see below), whose sum is σ = 2127187419264. Its totient is φ = 2116822439680.

The previous prime is 2122004043197. The next prime is 2122004043227. The reversal of 2122004043221 is 1223404002212.

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 2122004043221 - 2¹⁴ = 2122004026837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122004043227) 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, 1970180 + ... + 2850546.

It is an arithmetic number, because the mean of its divisors is an integer number (265898427408).

Almost surely, 2^{2122004043221} is an apocalyptic number.

It is an amenable number.

2122004043221 is a deficient number, since it is larger than the sum of its proper divisors (5183376043).

2122004043221 is an equidigital number, since it uses as much as digits as its factorization.

2122004043221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886251.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 2122004043221 its reverse (1223404002212), we get a palindrome (3345408045433).

The spelling of 2122004043221 in words is "two trillion, one hundred twenty-two billion, four million, forty-three thousand, two hundred twenty-one".