22221820202 has 8 divisors (see below), whose sum is σ = 33333490116. Its totient is φ = 11110656832.

The previous prime is 22221820189. The next prime is 22221820223. The reversal of 22221820202 is 20202812222.

It can be written as a sum of positive squares in 2 ways, for example, as 20425840561 + 1795979641 = 142919^2 + 42379^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14498 + ... + 211314.

Almost surely, 2^22221820202 is an apocalyptic number.

22221820202 is a deficient number, since it is larger than the sum of its proper divisors (11111669914).

22221820202 is a wasteful number, since it uses less digits than its factorization.

22221820202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253272.

The product of its (nonzero) digits is 1024, while the sum is 23.

The spelling of 22221820202 in words is "twenty-two billion, two hundred twenty-one million, eight hundred twenty thousand, two hundred two".