20221220122202 has 64 divisors (see below), whose sum is σ = 34584201179136. Its totient is φ = 8777515306560.

The previous prime is 20221220122193. The next prime is 20221220122237. The reversal of 20221220122202 is 20222102212202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1495313813 + ... + 1495327335.

It is an arithmetic number, because the mean of its divisors is an integer number (540378143424).

Almost surely, 2^{20221220122202} is an apocalyptic number.

20221220122202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20221220122202 is a deficient number, since it is larger than the sum of its proper divisors (14362981056934).

20221220122202 is a wasteful number, since it uses less digits than its factorization.

20221220122202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18155.

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

Adding to 20221220122202 its reverse (20222102212202), we get a palindrome (40443322334404).

Subtracting 20221220122202 from its reverse (20222102212202), we obtain a square (882090000 = 29700²).

The spelling of 20221220122202 in words is "twenty trillion, two hundred twenty-one billion, two hundred twenty million, one hundred twenty-two thousand, two hundred two".