21602426227222 has 16 divisors (see below), whose sum is σ = 32501519542800. Its totient is φ = 10768594997088.

The previous prime is 21602426227201. The next prime is 21602426227259. The reversal of 21602426227222 is 22272262420612.

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, 2871904 + ... + 7173052.

It is an arithmetic number, because the mean of its divisors is an integer number (2031344971425).

Almost surely, 2^{21602426227222} is an apocalyptic number.

21602426227222 is a deficient number, since it is larger than the sum of its proper divisors (10899093315578).

21602426227222 is a wasteful number, since it uses less digits than its factorization.

21602426227222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4308735.

The product of its (nonzero) digits is 258048, while the sum is 40.

Adding to 21602426227222 its reverse (22272262420612), we get a palindrome (43874688647834).

The spelling of 21602426227222 in words is "twenty-one trillion, six hundred two billion, four hundred twenty-six million, two hundred twenty-seven thousand, two hundred twenty-two".