20442001122 has 12 divisors (see below), whose sum is σ = 44291002470. Its totient is φ = 6814000368.

The previous prime is 20442001103. The next prime is 20442001123. The reversal of 20442001122 is 22110024402.

It can be written as a sum of positive squares in only one way, i.e., 19844638641 + 597362481 = 140871^2 + 24441^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1135666729 = 20442001122 / (2 + 0 + 4 + 4 + 2 + 0 + 0 + 1 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 20442001095 and 20442001104.

It is not an unprimeable number, because it can be changed into a prime (20442001123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 567833347 + ... + 567833382.

Almost surely, 2^20442001122 is an apocalyptic number.

20442001122 is an abundant number, since it is smaller than the sum of its proper divisors (23849001348).

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

20442001122 is a wasteful number, since it uses less digits than its factorization.

20442001122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135666737 (or 1135666734 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20442001122 its reverse (22110024402), we get a palindrome (42552025524).

The spelling of 20442001122 in words is "twenty billion, four hundred forty-two million, one thousand, one hundred twenty-two".