21220120122202 has 8 divisors (see below), whose sum is σ = 32856960189312. Its totient is φ = 10267800059100.

The previous prime is 21220120122199. The next prime is 21220120122283. The reversal of 21220120122202 is 20222102102212.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21220120122202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171130000924 + ... + 171130001047.

It is an arithmetic number, because the mean of its divisors is an integer number (4107120023664).

Almost surely, 2^{21220120122202} is an apocalyptic number.

21220120122202 is a deficient number, since it is larger than the sum of its proper divisors (11636840067110).

21220120122202 is a wasteful number, since it uses less digits than its factorization.

21220120122202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342260002004.

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

Adding to 21220120122202 its reverse (20222102102212), we get a palindrome (41442222224414).

The spelling of 21220120122202 in words is "twenty-one trillion, two hundred twenty billion, one hundred twenty million, one hundred twenty-two thousand, two hundred two".