2222212122200 has 144 divisors (see below), whose sum is σ = 6020431152120. Its totient is φ = 760601372160.

The previous prime is 2222212122199. The next prime is 2222212122239. The reversal of 2222212122200 is 22212122222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5559452 + ... + 5945748.

Almost surely, 2^{2222212122200} is an apocalyptic number.

2222212122200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2222212122200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3010215576060).

2222212122200 is an abundant number, since it is smaller than the sum of its proper divisors (3798219029920).

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

2222212122200 is a wasteful number, since it uses less digits than its factorization.

2222212122200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386914 (or 386898 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 2222212122200 its reverse (22212122222), we get a palindrome (2244424244422).

The spelling of 2222212122200 in words is "two trillion, two hundred twenty-two billion, two hundred twelve million, one hundred twenty-two thousand, two hundred".