21222004122010 has 16 divisors (see below), whose sum is σ = 38340565385472. Its totient is φ = 8457477656400.

The previous prime is 21222004121987. The next prime is 21222004122017. The reversal of 21222004122010 is 1022140022212.

It is not an unprimeable number, because it can be changed into a prime (21222004122017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3915496206 + ... + 3915501625.

It is an arithmetic number, because the mean of its divisors is an integer number (2396285336592).

Almost surely, 2^{21222004122010} is an apocalyptic number.

21222004122010 is a deficient number, since it is larger than the sum of its proper divisors (17118561263462).

21222004122010 is a wasteful number, since it uses less digits than its factorization.

21222004122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7830998109.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 21222004122010 its reverse (1022140022212), we get a palindrome (22244144144222).

The spelling of 21222004122010 in words is "twenty-one trillion, two hundred twenty-two billion, four million, one hundred twenty-two thousand, ten".