20001200202222 has 96 divisors (see below), whose sum is σ = 43297194954240. Its totient is φ = 6156676131840.

The previous prime is 20001200202199. The next prime is 20001200202257. The reversal of 20001200202222 is 22220200210002.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 53113803 + ... + 53489049.

It is an arithmetic number, because the mean of its divisors is an integer number (451012447440).

Almost surely, 2^{20001200202222} is an apocalyptic number.

20001200202222 is an abundant number, since it is smaller than the sum of its proper divisors (23295994752018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20001200202222 is a wasteful number, since it uses less digits than its factorization.

20001200202222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375866 (or 375849 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20001200202222 its reverse (22220200210002), we get a palindrome (42221400412224).

The spelling of 20001200202222 in words is "twenty trillion, one billion, two hundred million, two hundred two thousand, two hundred twenty-two".