1222211102200 has 72 divisors (see below), whose sum is σ = 3123456492240. Its totient is φ = 444440392000.

The previous prime is 1222211102171. The next prime is 1222211102213. The reversal of 1222211102200 is 22011122221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 25228096 + ... + 25276495.

It is an arithmetic number, because the mean of its divisors is an integer number (43381340170).

Almost surely, 2^{1222211102200} is an apocalyptic number.

1222211102200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222211102200 is an abundant number, since it is smaller than the sum of its proper divisors (1901245390040).

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

1222211102200 is a wasteful number, since it uses less digits than its factorization.

1222211102200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50504629 (or 50504609 counting only the distinct ones).

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

Adding to 1222211102200 its reverse (22011122221), we get a palindrome (1244222224421).

The spelling of 1222211102200 in words is "one trillion, two hundred twenty-two billion, two hundred eleven million, one hundred two thousand, two hundred".