22222143141221 has 4 divisors (see below), whose sum is σ = 22598789635200. Its totient is φ = 21845496647244.

The previous prime is 22222143141131. The next prime is 22222143141251. The reversal of 22222143141221 is 12214134122222.

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 a de Polignac number, because none of the positive numbers 2^k-22222143141221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222143141251) 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, 188323246901 + ... + 188323247018.

It is an arithmetic number, because the mean of its divisors is an integer number (5649697408800).

Almost surely, 2^{22222143141221} is an apocalyptic number.

It is an amenable number.

22222143141221 is a deficient number, since it is larger than the sum of its proper divisors (376646493979).

22222143141221 is an equidigital number, since it uses as much as digits as its factorization.

22222143141221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376646493978.

The product of its digits is 6144, while the sum is 29.

Adding to 22222143141221 its reverse (12214134122222), we get a palindrome (34436277263443).

The spelling of 22222143141221 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred forty-three million, one hundred forty-one thousand, two hundred twenty-one".