21030044124210 has 256 divisors, whose sum is σ = 58498964951040. Its totient is φ = 4784860200960.

The previous prime is 21030044124203. The next prime is 21030044124211. The reversal of 21030044124210 is 1242144003012.

It is not an unprimeable number, because it can be changed into a prime (21030044124211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1837160707 + ... + 1837172153.

It is an arithmetic number, because the mean of its divisors is an integer number (228511581840).

Almost surely, 2^{21030044124210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21030044124210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29249482475520).

21030044124210 is an abundant number, since it is smaller than the sum of its proper divisors (37468920826830).

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

21030044124210 is a wasteful number, since it uses less digits than its factorization.

21030044124210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14193.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 21030044124210 its reverse (1242144003012), we get a palindrome (22272188127222).

The spelling of 21030044124210 in words is "twenty-one trillion, thirty billion, forty-four million, one hundred twenty-four thousand, two hundred ten".