1210001122200 has 192 divisors, whose sum is σ = 4277162806560. Its totient is φ = 280326021120.

The previous prime is 1210001122199. The next prime is 1210001122219. The reversal of 1210001122200 is 22211000121.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4429999 + ... + 4695198.

Almost surely, 2^{1210001122200} is an apocalyptic number.

1210001122200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210001122200 is an abundant number, since it is smaller than the sum of its proper divisors (3067161684360).

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

1210001122200 is a wasteful number, since it uses less digits than its factorization.

1210001122200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9125246 (or 9125237 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1210001122200 its reverse (22211000121), we get a palindrome (1232212122321).

The spelling of 1210001122200 in words is "one trillion, two hundred ten billion, one million, one hundred twenty-two thousand, two hundred".