21300222531430 has 16 divisors (see below), whose sum is σ = 38345353596144. Its totient is φ = 8518988337120.

The previous prime is 21300222531349. The next prime is 21300222531461. The reversal of 21300222531430 is 3413522200312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137503152 + ... + 137657971.

It is an arithmetic number, because the mean of its divisors is an integer number (2396584599759).

Almost surely, 2^{21300222531430} is an apocalyptic number.

21300222531430 is a deficient number, since it is larger than the sum of its proper divisors (17045131064714).

21300222531430 is a wasteful number, since it uses less digits than its factorization.

21300222531430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275168871.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 21300222531430 its reverse (3413522200312), we get a palindrome (24713744731742).

The spelling of 21300222531430 in words is "twenty-one trillion, three hundred billion, two hundred twenty-two million, five hundred thirty-one thousand, four hundred thirty".