1212120214210 has 8 divisors (see below), whose sum is σ = 2181816385596. Its totient is φ = 484848085680.

The previous prime is 1212120214189. The next prime is 1212120214211. The reversal of 1212120214210 is 124120212121.

It can be written as a sum of positive squares in 2 ways, for example, as 1012058132121 + 200062082089 = 1006011^2 + 447283^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1212120214211) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 60606010701 + ... + 60606010720.

Almost surely, 2^{1212120214210} is an apocalyptic number.

1212120214210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212120214210 is a deficient number, since it is larger than the sum of its proper divisors (969696171386).

1212120214210 is a wasteful number, since it uses less digits than its factorization.

1212120214210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121212021428.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1212120214210 its reverse (124120212121), we get a palindrome (1336240426331).

The spelling of 1212120214210 in words is "one trillion, two hundred twelve billion, one hundred twenty million, two hundred fourteen thousand, two hundred ten".