20010011200 has 42 divisors (see below), whose sum is σ = 49237137746. Its totient is φ = 8004003840.

The previous prime is 20010011191. The next prime is 20010011207. The reversal of 20010011200 is 211001002.

It can be written as a sum of positive squares in 3 ways, for example, as 338265664 + 19671745536 = 18392^2 + 140256^2 .

It is not an unprimeable number, because it can be changed into a prime (20010011207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6251529 + ... + 6254728.

Almost surely, 2^20010011200 is an apocalyptic number.

20010011200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010011200 is an abundant number, since it is smaller than the sum of its proper divisors (29227126546).

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

20010011200 is a wasteful number, since it uses less digits than its factorization.

20010011200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12506279 (or 12506264 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20010011200 its reverse (211001002), we get a palindrome (20221012202).

The spelling of 20010011200 in words is "twenty billion, ten million, eleven thousand, two hundred".