20111210202200 has 288 divisors, whose sum is σ = 52528530816000. Its totient is φ = 7149954240000.

The previous prime is 20111210202157. The next prime is 20111210202221. The reversal of 20111210202200 is 220201211102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 208463975 + ... + 208560425.

It is an arithmetic number, because the mean of its divisors is an integer number (182390732000).

Almost surely, 2^{20111210202200} is an apocalyptic number.

20111210202200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20111210202200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26264265408000).

20111210202200 is an abundant number, since it is smaller than the sum of its proper divisors (32417320613800).

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

20111210202200 is a wasteful number, since it uses less digits than its factorization.

20111210202200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96723 (or 96701 counting only the distinct ones).

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

Adding to 20111210202200 its reverse (220201211102), we get a palindrome (20331411413302).

The spelling of 20111210202200 in words is "twenty trillion, one hundred eleven billion, two hundred ten million, two hundred two thousand, two hundred".