20112442000 has 240 divisors, whose sum is σ = 59038042752. Its totient is φ = 6595142400.

The previous prime is 20112441863. The next prime is 20112442027. The reversal of 20112442000 is 24421102.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2249539 + ... + 2258461.

Almost surely, 2^20112442000 is an apocalyptic number.

20112442000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20112442000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29519021376).

20112442000 is an abundant number, since it is smaller than the sum of its proper divisors (38925600752).

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

20112442000 is a wasteful number, since it uses less digits than its factorization.

20112442000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8983 (or 8960 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20112442000 its reverse (24421102), we get a palindrome (20136863102).

The spelling of 20112442000 in words is "twenty billion, one hundred twelve million, four hundred forty-two thousand".