22020221085638 has 8 divisors (see below), whose sum is σ = 33073735483080. Its totient is φ = 10995642591280.

The previous prime is 22020221085637. The next prime is 22020221085649. The reversal of 22020221085638 is 83658012202022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22020221085595 and 22020221085604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020221085637) 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, 7233973868 + ... + 7233976911.

It is an arithmetic number, because the mean of its divisors is an integer number (4134216935385).

Almost surely, 2^{22020221085638} is an apocalyptic number.

22020221085638 is a deficient number, since it is larger than the sum of its proper divisors (11053514397442).

22020221085638 is a wasteful number, since it uses less digits than its factorization.

22020221085638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14467951542.

The product of its (nonzero) digits is 184320, while the sum is 41.

The spelling of 22020221085638 in words is "twenty-two trillion, twenty billion, two hundred twenty-one million, eighty-five thousand, six hundred thirty-eight".