2101101200 has 60 divisors (see below), whose sum is σ = 5506806768. Its totient is φ = 764035200.

The previous prime is 2101101181. The next prime is 2101101227. The reversal of 2101101200 is 21011012.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234362 + ... + 243161.

Almost surely, 2^2101101200 is an apocalyptic number.

2101101200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101101200 is an abundant number, since it is smaller than the sum of its proper divisors (3405705568).

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

2101101200 is a wasteful number, since it uses less digits than its factorization.

2101101200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477552 (or 477541 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 2101101200 is about 45837.7704518883. The cubic root of 2101101200 is about 1280.8029629810.

Adding to 2101101200 its reverse (21011012), we get a palindrome (2122112212).

2101101200 divided by its reverse (21011012) gives a square (100 = 10²).

It can be divided in two parts, 2101 and 101200, that added together give a palindrome (103301).

The spelling of 2101101200 in words is "two billion, one hundred one million, one hundred one thousand, two hundred".