20011110212200 has 96 divisors (see below), whose sum is σ = 47349442879200. Its totient is φ = 7863825032960.

The previous prime is 20011110212173. The next prime is 20011110212209. The reversal of 20011110212200 is 221201111002.

It is not an unprimeable number, because it can be changed into a prime (20011110212209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 395887 + ... + 6338686.

It is an arithmetic number, because the mean of its divisors is an integer number (493223363325).

Almost surely, 2^{20011110212200} is an apocalyptic number.

20011110212200 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 20011110212200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23674721439600).

20011110212200 is an abundant number, since it is smaller than the sum of its proper divisors (27338332667000).

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

20011110212200 is a wasteful number, since it uses less digits than its factorization.

20011110212200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6734851 (or 6734842 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20011110212200 its reverse (221201111002), we get a palindrome (20232311323202).

The spelling of 20011110212200 in words is "twenty trillion, eleven billion, one hundred ten million, two hundred twelve thousand, two hundred".