20111102220200 has 24 divisors (see below), whose sum is σ = 46758312662430. Its totient is φ = 8044440888000.

The previous prime is 20111102220043. The next prime is 20111102220217. The reversal of 20111102220200 is 202220111102.

It can be written as a sum of positive squares in 3 ways, for example, as 14378247761956 + 5732854458244 = 3791866^2 + 2394338^2 .

It is a super-2 number, since 2×20111102220200² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50277755351 + ... + 50277755750.

Almost surely, 2^{20111102220200} is an apocalyptic number.

20111102220200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20111102220200 is an abundant number, since it is smaller than the sum of its proper divisors (26647210442230).

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

20111102220200 is a wasteful number, since it uses less digits than its factorization.

20111102220200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100555511117 (or 100555511108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20111102220200 its reverse (202220111102), we get a palindrome (20313322331302).

The spelling of 20111102220200 in words is "twenty trillion, one hundred eleven billion, one hundred two million, two hundred twenty thousand, two hundred".