21043430222130 has 96 divisors (see below), whose sum is σ = 54952749865728. Its totient is φ = 5587011936000.

The previous prime is 21043430222093. The next prime is 21043430222137. The reversal of 21043430222130 is 3122203434012.

21043430222130 is a `hidden beast` number, since 2 + 1 + 0 + 4 + 3 + 430 + 2 + 221 + 3 + 0 = 666.

It is a super-2 number, since 2×21043430222130² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21043430222094 and 21043430222103.

It is not an unprimeable number, because it can be changed into a prime (21043430222137) 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, 35092582 + ... + 35687198.

It is an arithmetic number, because the mean of its divisors is an integer number (572424477768).

Almost surely, 2^{21043430222130} is an apocalyptic number.

21043430222130 is an abundant number, since it is smaller than the sum of its proper divisors (33909319643598).

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

21043430222130 is a wasteful number, since it uses less digits than its factorization.

21043430222130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596352 (or 596349 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 21043430222130 its reverse (3122203434012), we get a palindrome (24165633656142).

The spelling of 21043430222130 in words is "twenty-one trillion, forty-three billion, four hundred thirty million, two hundred twenty-two thousand, one hundred thirty".