1212000310100 has 36 divisors (see below), whose sum is σ = 2654169510300. Its totient is φ = 480352412160.

The previous prime is 1212000310099. The next prime is 1212000310121. The reversal of 1212000310100 is 10130002121.

It can be written as a sum of positive squares in 6 ways, for example, as 6387526084 + 1205612784016 = 79922^2 + 1098004^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55585445 + ... + 55607244.

Almost surely, 2^{1212000310100} is an apocalyptic number.

1212000310100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212000310100 is an abundant number, since it is smaller than the sum of its proper divisors (1442169200200).

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

1212000310100 is a wasteful number, since it uses less digits than its factorization.

1212000310100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111192812 (or 111192805 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 1212000310100 its reverse (10130002121), we get a palindrome (1222130312221).

The spelling of 1212000310100 in words is "one trillion, two hundred twelve billion, three hundred ten thousand, one hundred".