20112442002 has 24 divisors (see below), whose sum is σ = 43895043036. Its totient is φ = 6655211136.

The previous prime is 20112441863. The next prime is 20112442027. The reversal of 20112442002 is 20024421102.

It can be written as a sum of positive squares in 2 ways, for example, as 19849710321 + 262731681 = 140889^2 + 16209^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4075483 + ... + 4080414.

Almost surely, 2^20112442002 is an apocalyptic number.

20112442002 is an abundant number, since it is smaller than the sum of its proper divisors (23782601034).

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

20112442002 is a wasteful number, since it uses less digits than its factorization.

20112442002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8156042 (or 8156039 counting only the distinct ones).

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

Adding to 20112442002 its reverse (20024421102), we get a palindrome (40136863104).

The spelling of 20112442002 in words is "twenty billion, one hundred twelve million, four hundred forty-two thousand, two".