2211012200 has 48 divisors (see below), whose sum is σ = 5317879500. Its totient is φ = 853905920.

The previous prime is 2211012173. The next prime is 2211012203. The reversal of 2211012200 is 22101122.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 171767236 + 2039244964 = 13106^2 + 45158^2 .

It is not an unprimeable number, because it can be changed into a prime (2211012203) 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, 184805 + ... + 196404.

Almost surely, 2^2211012200 is an apocalyptic number.

2211012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211012200 is an abundant number, since it is smaller than the sum of its proper divisors (3106867300).

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

2211012200 is a wasteful number, since it uses less digits than its factorization.

2211012200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381254 (or 381245 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2211012200 is about 47021.4015103761. The cubic root of 2211012200 is about 1302.7578926496.

Adding to 2211012200 its reverse (22101122), we get a palindrome (2233113322).

The spelling of 2211012200 in words is "two billion, two hundred eleven million, twelve thousand, two hundred".