22020221085604 has 24 divisors (see below), whose sum is σ = 44041855968320. Its totient is φ = 9436934651616.

The previous prime is 22020221085523. The next prime is 22020221085613. The reversal of 22020221085604 is 40658012202022.

It is a self number, because there is not a number n which added to its sum of digits gives 22020221085604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11734302 + ... + 13480885.

Almost surely, 2^{22020221085604} is an apocalyptic number.

It is an amenable number.

22020221085604 is an abundant number, since it is smaller than the sum of its proper divisors (22021634882716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22020221085604 is a wasteful number, since it uses less digits than its factorization.

22020221085604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25246387 (or 25246385 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

Adding to 22020221085604 its reverse (40658012202022), we get a palindrome (62678233287626).

The spelling of 22020221085604 in words is "twenty-two trillion, twenty billion, two hundred twenty-one million, eighty-five thousand, six hundred four".