22142203240220 has 72 divisors (see below), whose sum is σ = 54095932613520. Its totient is φ = 7590813484800.

The previous prime is 22142203240219. The next prime is 22142203240229. The reversal of 22142203240220 is 2204230224122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22142203240220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22142203240229) 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 23 ways as a sum of consecutive naturals, for example, 8163920 + ... + 10532520.

It is an arithmetic number, because the mean of its divisors is an integer number (751332397410).

Almost surely, 2^{22142203240220} is an apocalyptic number.

22142203240220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22142203240220 is an abundant number, since it is smaller than the sum of its proper divisors (31953729373300).

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

22142203240220 is a wasteful number, since it uses less digits than its factorization.

22142203240220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2378163 (or 2378154 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 22142203240220 its reverse (2204230224122), we get a palindrome (24346433464342).

The spelling of 22142203240220 in words is "twenty-two trillion, one hundred forty-two billion, two hundred three million, two hundred forty thousand, two hundred twenty".