1222100020200 has 96 divisors (see below), whose sum is σ = 3826020252960. Its totient is φ = 322666656000.

The previous prime is 1222100020199. The next prime is 1222100020217. The reversal of 1222100020200 is 20200012221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10022734 + ... + 10143933.

It is an arithmetic number, because the mean of its divisors is an integer number (39854377635).

Almost surely, 2^{1222100020200} is an apocalyptic number.

1222100020200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222100020200 is an abundant number, since it is smaller than the sum of its proper divisors (2603920232760).

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

1222100020200 is a wasteful number, since it uses less digits than its factorization.

1222100020200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20166787 (or 20166778 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 1222100020200 its reverse (20200012221), we get a palindrome (1242300032421).

The spelling of 1222100020200 in words is "one trillion, two hundred twenty-two billion, one hundred million, twenty thousand, two hundred".