1101200220 has 36 divisors (see below), whose sum is σ = 3340307880. Its totient is φ = 293653344.

The previous prime is 1101200213. The next prime is 1101200227. The reversal of 1101200220 is 220021011.

1101200220 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1101200213) and next prime (1101200227).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101200227) 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, 3058710 + ... + 3059069.

It is an arithmetic number, because the mean of its divisors is an integer number (92786330).

Almost surely, 2^1101200220 is an apocalyptic number.

1101200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101200220 is an abundant number, since it is smaller than the sum of its proper divisors (2239107660).

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

1101200220 is a wasteful number, since it uses less digits than its factorization.

1101200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6117794 (or 6117789 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1101200220 is about 33184.3369679130. The cubic root of 1101200220 is about 1032.6554223953.

Adding to 1101200220 its reverse (220021011), we get a palindrome (1321221231).

The spelling of 1101200220 in words is "one billion, one hundred one million, two hundred thousand, two hundred twenty".