20442201000100 has 72 divisors (see below), whose sum is σ = 48393112517568. Its totient is φ = 7433397436800.

The previous prime is 20442201000083. The next prime is 20442201000101. The reversal of 20442201000100 is 100010224402.

It is not an unprimeable number, because it can be changed into a prime (20442201000101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81105874 + ... + 81357526.

It is an arithmetic number, because the mean of its divisors is an integer number (672126562744).

Almost surely, 2^{20442201000100} is an apocalyptic number.

20442201000100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20442201000100 is an abundant number, since it is smaller than the sum of its proper divisors (27950911517468).

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

20442201000100 is a wasteful number, since it uses less digits than its factorization.

20442201000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325525 (or 325518 counting only the distinct ones).

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

Adding to 20442201000100 its reverse (100010224402), we get a palindrome (20542211224502).

The spelling of 20442201000100 in words is "twenty trillion, four hundred forty-two billion, two hundred one million, one hundred", and thus it is an aban number.