20442021124 has 24 divisors (see below), whose sum is σ = 40898785088. Its totient is φ = 8757707040.

The previous prime is 20442021097. The next prime is 20442021133. The reversal of 20442021124 is 42112024402.

It is a junction number, because it is equal to n+sod(n) for n = 20442021095 and 20442021104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51747 + ... + 208714.

Almost surely, 2^20442021124 is an apocalyptic number.

It is an amenable number.

20442021124 is an abundant number, since it is smaller than the sum of its proper divisors (20456763964).

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

20442021124 is a wasteful number, since it uses less digits than its factorization.

20442021124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263275 (or 263273 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 20442021124 its reverse (42112024402), we get a palindrome (62554045526).

The spelling of 20442021124 in words is "twenty billion, four hundred forty-two million, twenty-one thousand, one hundred twenty-four".