21302224302134 has 16 divisors (see below), whose sum is σ = 31957982005776. Its totient is φ = 10649563776000.

The previous prime is 21302224302131. The next prime is 21302224302173. The reversal of 21302224302134 is 43120342220312.

It is a junction number, because it is equal to n+sod(n) for n = 21302224302097 and 21302224302106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302224302131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567480614 + ... + 567518150.

It is an arithmetic number, because the mean of its divisors is an integer number (1997373875361).

Almost surely, 2^{21302224302134} is an apocalyptic number.

21302224302134 is a deficient number, since it is larger than the sum of its proper divisors (10655757703642).

21302224302134 is a wasteful number, since it uses less digits than its factorization.

21302224302134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71231.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 21302224302134 its reverse (43120342220312), we get a palindrome (64422566522446).

The spelling of 21302224302134 in words is "twenty-one trillion, three hundred two billion, two hundred twenty-four million, three hundred two thousand, one hundred thirty-four".