1212100130212 has 12 divisors (see below), whose sum is σ = 2121237093276. Its totient is φ = 606032389280.

The previous prime is 1212100130179. The next prime is 1212100130221. The reversal of 1212100130212 is 2120310012121.

It can be written as a sum of positive squares in 2 ways, for example, as 736860860836 + 475239269376 = 858406^2 + 689376^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4264063 + ... + 4539430.

It is an arithmetic number, because the mean of its divisors is an integer number (176769757773).

Almost surely, 2^{1212100130212} is an apocalyptic number.

It is an amenable number.

1212100130212 is a deficient number, since it is larger than the sum of its proper divisors (909136963064).

1212100130212 is a wasteful number, since it uses less digits than its factorization.

1212100130212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8837918 (or 8837916 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1212100130212 its reverse (2120310012121), we get a palindrome (3332410142333).

The spelling of 1212100130212 in words is "one trillion, two hundred twelve billion, one hundred million, one hundred thirty thousand, two hundred twelve".