20220122220424 has 128 divisors (see below), whose sum is σ = 45215680757760. Its totient is φ = 8297361715968.

The previous prime is 20220122220407. The next prime is 20220122220469. The reversal of 20220122220424 is 42402222102202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48196249 + ... + 48613975.

It is an arithmetic number, because the mean of its divisors is an integer number (353247505920).

Almost surely, 2^{20220122220424} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20220122220424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22607840378880).

20220122220424 is an abundant number, since it is smaller than the sum of its proper divisors (24995558537336).

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

20220122220424 is a wasteful number, since it uses less digits than its factorization.

20220122220424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418187 (or 418183 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 20220122220424 its reverse (42402222102202), we get a palindrome (62622344322626).

The spelling of 20220122220424 in words is "twenty trillion, two hundred twenty billion, one hundred twenty-two million, two hundred twenty thousand, four hundred twenty-four".