20102222222200 has 48 divisors (see below), whose sum is σ = 46773591689160. Its totient is φ = 8034708240000.

The previous prime is 20102222222197. The next prime is 20102222222207. The reversal of 20102222222200 is 222222220102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102222222207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38368206 + ... + 38888605.

Almost surely, 2^{20102222222200} is an apocalyptic number.

20102222222200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102222222200 is an abundant number, since it is smaller than the sum of its proper divisors (26671369466960).

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

20102222222200 is a wasteful number, since it uses less digits than its factorization.

20102222222200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77258128 (or 77258119 counting only the distinct ones).

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

Adding to 20102222222200 its reverse (222222220102), we get a palindrome (20324444442302).

The spelling of 20102222222200 in words is "twenty trillion, one hundred two billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred".