21322031231210 has 32 divisors (see below), whose sum is σ = 38401624800000. Its totient is φ = 8523931216320.

The previous prime is 21322031231147. The next prime is 21322031231239. The reversal of 21322031231210 is 1213213022312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362769125 + ... + 362827895.

It is an arithmetic number, because the mean of its divisors is an integer number (1200050775000).

Almost surely, 2^{21322031231210} is an apocalyptic number.

21322031231210 is a deficient number, since it is larger than the sum of its proper divisors (17079593568790).

21322031231210 is a wasteful number, since it uses less digits than its factorization.

21322031231210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78926.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 21322031231210 its reverse (1213213022312), we get a palindrome (22535244253522).

The spelling of 21322031231210 in words is "twenty-one trillion, three hundred twenty-two billion, thirty-one million, two hundred thirty-one thousand, two hundred ten".