21244141100 has 108 divisors (see below), whose sum is σ = 57751553664. Its totient is φ = 6723400320.

The previous prime is 21244141097. The next prime is 21244141117. The reversal of 21244141100 is 114144212.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 103052 + ... + 230451.

It is an arithmetic number, because the mean of its divisors is an integer number (534736608).

Almost surely, 2^21244141100 is an apocalyptic number.

21244141100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21244141100 is an abundant number, since it is smaller than the sum of its proper divisors (36507412564).

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

21244141100 is a wasteful number, since it uses less digits than its factorization.

21244141100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333544 (or 333530 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 21244141100 its reverse (114144212), we get a palindrome (21358285312).

The spelling of 21244141100 in words is "twenty-one billion, two hundred forty-four million, one hundred forty-one thousand, one hundred".