20000000201100 has 36 divisors (see below), whose sum is σ = 57866667249384. Its totient is φ = 5333333386880.

The previous prime is 20000000201047. The next prime is 20000000201101. The reversal of 20000000201100 is 110200000002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is not an unprimeable number, because it can be changed into a prime (20000000201101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33333333369 + ... + 33333333968.

It is an arithmetic number, because the mean of its divisors is an integer number (1607407423594).

Almost surely, 2^{20000000201100} is an apocalyptic number.

20000000201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000000201100 is an abundant number, since it is smaller than the sum of its proper divisors (37866667048284).

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

20000000201100 is a wasteful number, since it uses less digits than its factorization.

20000000201100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66666667354 (or 66666667347 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 20000000201100 its reverse (110200000002), we get a palindrome (20110200201102).

The spelling of 20000000201100 in words is "twenty trillion, two hundred one thousand, one hundred".