21222200220202 has 8 divisors (see below), whose sum is σ = 31833461167200. Its totient is φ = 10611046497804.

The previous prime is 21222200220173. The next prime is 21222200220209. The reversal of 21222200220202 is 20202200222212.

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 21222200220202.

It is not an unprimeable number, because it can be changed into a prime (21222200220209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26309502 + ... + 27104137.

It is an arithmetic number, because the mean of its divisors is an integer number (3979182645900).

Almost surely, 2^{21222200220202} is an apocalyptic number.

21222200220202 is a deficient number, since it is larger than the sum of its proper divisors (10611260946998).

21222200220202 is a wasteful number, since it uses less digits than its factorization.

21222200220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53612300.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 21222200220202 its reverse (20202200222212), we get a palindrome (41424400442414).

The spelling of 21222200220202 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred million, two hundred twenty thousand, two hundred two".