2212221101200 has 60 divisors (see below), whose sum is σ = 5798030406768. Its totient is φ = 804444035200.

The previous prime is 2212221101191. The next prime is 2212221101257. The reversal of 2212221101200 is 21011222122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 251384362 + ... + 251393161.

Almost surely, 2^{2212221101200} is an apocalyptic number.

2212221101200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212221101200 is an abundant number, since it is smaller than the sum of its proper divisors (3585809305568).

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

2212221101200 is a wasteful number, since it uses less digits than its factorization.

2212221101200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502777552 (or 502777541 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2212221101200 its reverse (21011222122), we get a palindrome (2233232323322).

The spelling of 2212221101200 in words is "two trillion, two hundred twelve billion, two hundred twenty-one million, one hundred one thousand, two hundred".