2211212220200 has 48 divisors (see below), whose sum is σ = 5161072689180. Its totient is φ = 881043292160.

The previous prime is 2211212220197. The next prime is 2211212220209. The reversal of 2211212220200 is 20222121122.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1750651826884 + 460560393316 = 1323122^2 + 678646^2 .

It is not an unprimeable number, because it can be changed into a prime (2211212220209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21458447 + ... + 21561246.

Almost surely, 2^{2211212220200} is an apocalyptic number.

2211212220200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211212220200 is an abundant number, since it is smaller than the sum of its proper divisors (2949860468980).

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

2211212220200 is a wasteful number, since it uses less digits than its factorization.

2211212220200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43019966 (or 43019957 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2211212220200 its reverse (20222121122), we get a palindrome (2231434341322).

The spelling of 2211212220200 in words is "two trillion, two hundred eleven billion, two hundred twelve million, two hundred twenty thousand, two hundred".