21242413024210 has 32 divisors (see below), whose sum is σ = 43700573347200. Its totient is φ = 7282797182592.

The previous prime is 21242413024181. The next prime is 21242413024211. The reversal of 21242413024210 is 1242031424212.

It is a super-2 number, since 2×21242413024210² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21242413024211) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4951819 + ... + 8185678.

It is an arithmetic number, because the mean of its divisors is an integer number (1365642917100).

Almost surely, 2^{21242413024210} is an apocalyptic number.

21242413024210 is an abundant number, since it is smaller than the sum of its proper divisors (22458160322990).

21242413024210 is a wasteful number, since it uses less digits than its factorization.

21242413024210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13160610.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 21242413024210 its reverse (1242031424212), we get a palindrome (22484444448422).

The spelling of 21242413024210 in words is "twenty-one trillion, two hundred forty-two billion, four hundred thirteen million, twenty-four thousand, two hundred ten".