22222211001200 has 60 divisors (see below), whose sum is σ = 61015842213840. Its totient is φ = 7619043770880.

The previous prime is 22222211001169. The next prime is 22222211001203. The reversal of 22222211001200 is 210011222222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222211001203) 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, 3968249165 + ... + 3968254764.

It is an arithmetic number, because the mean of its divisors is an integer number (1016930703564).

Almost surely, 2^{22222211001200} is an apocalyptic number.

22222211001200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222211001200 is an abundant number, since it is smaller than the sum of its proper divisors (38793631212640).

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

22222211001200 is a wasteful number, since it uses less digits than its factorization.

22222211001200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7936503954 (or 7936503943 counting only the distinct ones).

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

Adding to 22222211001200 its reverse (210011222222), we get a palindrome (22432222223422).

The spelling of 22222211001200 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred eleven million, one thousand, two hundred".