12422351010221 has 16 divisors (see below), whose sum is σ = 13760562735360. Its totient is φ = 11163772177920.

The previous prime is 12422351010217. The next prime is 12422351010257. The reversal of 12422351010221 is 12201015322421.

It is a cyclic number.

It is not a de Polignac number, because 12422351010221 - 2² = 12422351010217 is a prime.

It is a super-2 number, since 2×12422351010221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12422351210221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189569351 + ... + 189634868.

It is an arithmetic number, because the mean of its divisors is an integer number (860035170960).

Almost surely, 2^{12422351010221} is an apocalyptic number.

It is an amenable number.

12422351010221 is a deficient number, since it is larger than the sum of its proper divisors (1338211725139).

12422351010221 is a wasteful number, since it uses less digits than its factorization.

12422351010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379204324.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 12422351010221 its reverse (12201015322421), we get a palindrome (24623366332642).

The spelling of 12422351010221 in words is "twelve trillion, four hundred twenty-two billion, three hundred fifty-one million, ten thousand, two hundred twenty-one".