21024043441100 has 144 divisors (see below), whose sum is σ = 54049270125312. Its totient is φ = 6947879120640.

The previous prime is 21024043441081. The next prime is 21024043441109. The reversal of 21024043441100 is 114434042012.

It is a super-2 number, since 2×21024043441100² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21024043441100.

It is not an unprimeable number, because it can be changed into a prime (21024043441109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1021874 + ... + 6564473.

It is an arithmetic number, because the mean of its divisors is an integer number (375342153648).

Almost surely, 2^{21024043441100} is an apocalyptic number.

21024043441100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21024043441100 is an abundant number, since it is smaller than the sum of its proper divisors (33025226684212).

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

21024043441100 is a wasteful number, since it uses less digits than its factorization.

21024043441100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7586512 (or 7586505 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 21024043441100 its reverse (114434042012), we get a palindrome (21138477483112).

The spelling of 21024043441100 in words is "twenty-one trillion, twenty-four billion, forty-three million, four hundred forty-one thousand, one hundred".