22244443422421 has 8 divisors (see below), whose sum is σ = 24269488344864. Its totient is φ = 20219868965520.

The previous prime is 22244443422407. The next prime is 22244443422449. The reversal of 22244443422421 is 12422434444222.

It is a happy number.

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 22244443422421 - 2⁵ = 22244443422389 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 (22244443422401) 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, 117517515 + ... + 117706648.

It is an arithmetic number, because the mean of its divisors is an integer number (3033686043108).

Almost surely, 2^{22244443422421} is an apocalyptic number.

It is an amenable number.

22244443422421 is a deficient number, since it is larger than the sum of its proper divisors (2025044922443).

22244443422421 is a wasteful number, since it uses less digits than its factorization.

22244443422421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235232771.

The product of its digits is 786432, while the sum is 40.

Adding to 22244443422421 its reverse (12422434444222), we get a palindrome (34666877866643).

The spelling of 22244443422421 in words is "twenty-two trillion, two hundred forty-four billion, four hundred forty-three million, four hundred twenty-two thousand, four hundred twenty-one".