21225332320514 has 8 divisors (see below), whose sum is σ = 36386283978048. Its totient is φ = 9096570994500.

The previous prime is 21225332320499. The next prime is 21225332320541. The reversal of 21225332320514 is 41502323352212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 758047582862 + ... + 758047582889.

It is an arithmetic number, because the mean of its divisors is an integer number (4548285497256).

Almost surely, 2^{21225332320514} is an apocalyptic number.

21225332320514 is a deficient number, since it is larger than the sum of its proper divisors (15160951657534).

21225332320514 is a wasteful number, since it uses less digits than its factorization.

21225332320514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516095165760.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 21225332320514 its reverse (41502323352212), we get a palindrome (62727655672726).

The spelling of 21225332320514 in words is "twenty-one trillion, two hundred twenty-five billion, three hundred thirty-two million, three hundred twenty thousand, five hundred fourteen".