20211102120200 has 144 divisors (see below), whose sum is σ = 47782511723520. Its totient is φ = 7950443276160.

The previous prime is 20211102120197. The next prime is 20211102120203. The reversal of 20211102120200 is 202120111202.

It is an interprime number because it is at equal distance from previous prime (20211102120197) and next prime (20211102120203).

It is not an unprimeable number, because it can be changed into a prime (20211102120203) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 544946057 + ... + 544983143.

It is an arithmetic number, because the mean of its divisors is an integer number (331822998080).

Almost surely, 2^{20211102120200} is an apocalyptic number.

20211102120200 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 20211102120200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23891255861760).

20211102120200 is an abundant number, since it is smaller than the sum of its proper divisors (27571409603320).

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

20211102120200 is a wasteful number, since it uses less digits than its factorization.

20211102120200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37844 (or 37768 counting only the distinct ones).

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

Adding to 20211102120200 its reverse (202120111202), we get a palindrome (20413222231402).

The spelling of 20211102120200 in words is "twenty trillion, two hundred eleven billion, one hundred two million, one hundred twenty thousand, two hundred".