2211122222200 has 96 divisors (see below), whose sum is σ = 5411957742000. Its totient is φ = 837817344000.

The previous prime is 2211122222149. The next prime is 2211122222203. The reversal of 2211122222200 is 22222211122.

It is a super-2 number, since 2×2211122222200² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211122222203) 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 23 ways as a sum of consecutive naturals, for example, 51160600 + ... + 51203800.

Almost surely, 2^{2211122222200} is an apocalyptic number.

2211122222200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211122222200 is an abundant number, since it is smaller than the sum of its proper divisors (3200835519800).

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

2211122222200 is a wasteful number, since it uses less digits than its factorization.

2211122222200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56705 (or 56696 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2211122222200 its reverse (22222211122), we get a palindrome (2233344433322).

The spelling of 2211122222200 in words is "two trillion, two hundred eleven billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred".