22220140520 has 64 divisors (see below), whose sum is σ = 52653024000. Its totient is φ = 8416044288.

The previous prime is 22220140519. The next prime is 22220140529. The reversal of 22220140520 is 2504102222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22220140492 and 22220140501.

It is not an unprimeable number, because it can be changed into a prime (22220140529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1804946 + ... + 1817214.

It is an arithmetic number, because the mean of its divisors is an integer number (822703500).

Almost surely, 2^22220140520 is an apocalyptic number.

22220140520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220140520 is an abundant number, since it is smaller than the sum of its proper divisors (30432883480).

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

22220140520 is a wasteful number, since it uses less digits than its factorization.

22220140520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14682 (or 14678 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 22220140520 its reverse (2504102222), we get a palindrome (24724242742).

The spelling of 22220140520 in words is "twenty-two billion, two hundred twenty million, one hundred forty thousand, five hundred twenty".