21231024024210 has 384 divisors, whose sum is σ = 72836789704704. Its totient is φ = 3832736993280.

The previous prime is 21231024024179. The next prime is 21231024024229. The reversal of 21231024024210 is 1242042013212.

It is a super-2 number, since 2×21231024024210² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5037097 + ... + 8236163.

It is an arithmetic number, because the mean of its divisors is an integer number (189679139856).

Almost surely, 2^{21231024024210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21231024024210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36418394852352).

21231024024210 is an abundant number, since it is smaller than the sum of its proper divisors (51605765680494).

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

21231024024210 is a wasteful number, since it uses less digits than its factorization.

21231024024210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3199138 (or 3199125 counting only the distinct ones).

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

Adding to 21231024024210 its reverse (1242042013212), we get a palindrome (22473066037422).

The spelling of 21231024024210 in words is "twenty-one trillion, two hundred thirty-one billion, twenty-four million, twenty-four thousand, two hundred ten".