22220021330550 has 72 divisors (see below), whose sum is σ = 59707009678680. Its totient is φ = 5924423980800.

The previous prime is 22220021330501. The next prime is 22220021330557. The reversal of 22220021330550 is 5503312002222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220021330557) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 892980 + ... + 6725879.

It is an arithmetic number, because the mean of its divisors is an integer number (829264023315).

Almost surely, 2^{22220021330550} is an apocalyptic number.

22220021330550 is an abundant number, since it is smaller than the sum of its proper divisors (37486988348130).

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

22220021330550 is a wasteful number, since it uses less digits than its factorization.

22220021330550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7625358 (or 7625350 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 22220021330550 its reverse (5503312002222), we get a palindrome (27723333332772).

The spelling of 22220021330550 in words is "twenty-two trillion, two hundred twenty billion, twenty-one million, three hundred thirty thousand, five hundred fifty".