22201432231220 has 96 divisors (see below), whose sum is σ = 51361904805120. Its totient is φ = 7993833154560.

The previous prime is 22201432231217. The next prime is 22201432231247. The reversal of 22201432231220 is 2213223410222.

It is a self number, because there is not a number n which added to its sum of digits gives 22201432231220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187406966 + ... + 187525394.

It is an arithmetic number, because the mean of its divisors is an integer number (535019841720).

Almost surely, 2^{22201432231220} is an apocalyptic number.

22201432231220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22201432231220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25680952402560).

22201432231220 is an abundant number, since it is smaller than the sum of its proper divisors (29160472573900).

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

22201432231220 is a wasteful number, since it uses less digits than its factorization.

22201432231220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126825 (or 126823 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 22201432231220 its reverse (2213223410222), we get a palindrome (24414655641442).

The spelling of 22201432231220 in words is "twenty-two trillion, two hundred one billion, four hundred thirty-two million, two hundred thirty-one thousand, two hundred twenty".