1210200122100 has 36 divisors (see below), whose sum is σ = 3501512354144. Its totient is φ = 322720032480.

The previous prime is 1210200122083. The next prime is 1210200122107. The reversal of 1210200122100 is 12210020121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210200122107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2016999904 + ... + 2017000503.

Almost surely, 2^{1210200122100} is an apocalyptic number.

1210200122100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210200122100 is an abundant number, since it is smaller than the sum of its proper divisors (2291312232044).

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

1210200122100 is a wasteful number, since it uses less digits than its factorization.

1210200122100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4034000424 (or 4034000417 counting only the distinct ones).

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

Adding to 1210200122100 its reverse (12210020121), we get a palindrome (1222410142221).

The spelling of 1210200122100 in words is "one trillion, two hundred ten billion, two hundred million, one hundred twenty-two thousand, one hundred".