20442122130 has 16 divisors (see below), whose sum is σ = 49061093184. Its totient is φ = 5451232560.

The previous prime is 20442122093. The next prime is 20442122131. The reversal of 20442122130 is 3122124402.

It is a junction number, because it is equal to n+sod(n) for n = 20442122097 and 20442122106.

It is not an unprimeable number, because it can be changed into a prime (20442122131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340702006 + ... + 340702065.

It is an arithmetic number, because the mean of its divisors is an integer number (3066318324).

Almost surely, 2^20442122130 is an apocalyptic number.

20442122130 is an abundant number, since it is smaller than the sum of its proper divisors (28618971054).

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

20442122130 is a wasteful number, since it uses less digits than its factorization.

20442122130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681404081.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20442122130 its reverse (3122124402), we get a palindrome (23564246532).

The spelling of 20442122130 in words is "twenty billion, four hundred forty-two million, one hundred twenty-two thousand, one hundred thirty".