20222242131440 has 120 divisors (see below), whose sum is σ = 48295665409344. Its totient is φ = 7874537932800.

The previous prime is 20222242131439. The next prime is 20222242131449. The reversal of 20222242131440 is 4413124222202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222242131449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62101850 + ... + 62426630.

Almost surely, 2^{20222242131440} is an apocalyptic number.

20222242131440 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 20222242131440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24147832704672).

20222242131440 is an abundant number, since it is smaller than the sum of its proper divisors (28073423277904).

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

20222242131440 is a wasteful number, since it uses less digits than its factorization.

20222242131440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325339 (or 325292 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 20222242131440 its reverse (4413124222202), we get a palindrome (24635366353642).

The spelling of 20222242131440 in words is "twenty trillion, two hundred twenty-two billion, two hundred forty-two million, one hundred thirty-one thousand, four hundred forty".