20011102102200 has 96 divisors (see below), whose sum is σ = 67673908949760. Its totient is φ = 4851176265600.

The previous prime is 20011102102183. The next prime is 20011102102219. The reversal of 20011102102200 is 220120111002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1515985984 + ... + 1515999183.

It is an arithmetic number, because the mean of its divisors is an integer number (704936551560).

Almost surely, 2^{20011102102200} is an apocalyptic number.

20011102102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20011102102200 is an abundant number, since it is smaller than the sum of its proper divisors (47662806847560).

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

20011102102200 is a wasteful number, since it uses less digits than its factorization.

20011102102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3031985197 (or 3031985188 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20011102102200 its reverse (220120111002), we get a palindrome (20231222213202).

The spelling of 20011102102200 in words is "twenty trillion, eleven billion, one hundred two million, one hundred two thousand, two hundred".