21222102202202 has 16 divisors (see below), whose sum is σ = 34727300049024. Its totient is φ = 9646347948000.

The previous prime is 21222102202109. The next prime is 21222102202289. The reversal of 21222102202202 is 20220220122212.

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, 477302 + ... + 6532382.

It is an arithmetic number, because the mean of its divisors is an integer number (2170456253064).

Almost surely, 2^{21222102202202} is an apocalyptic number.

21222102202202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21222102202202 is a deficient number, since it is larger than the sum of its proper divisors (13505197846822).

21222102202202 is a wasteful number, since it uses less digits than its factorization.

21222102202202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6214405.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 21222102202202 its reverse (20220220122212), we get a palindrome (41442322324414).

The spelling of 21222102202202 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred two million, two hundred two thousand, two hundred two".