1213212112010 has 8 divisors (see below), whose sum is σ = 2183781801636. Its totient is φ = 485284844800.

The previous prime is 1213212111989. The next prime is 1213212112019. The reversal of 1213212112010 is 102112123121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1127744174209 + 85467937801 = 1061953^2 + 292349^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1213212112010.

It is not an unprimeable number, because it can be changed into a prime (1213212112019) 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 3 ways as a sum of consecutive naturals, for example, 60660605591 + ... + 60660605610.

Almost surely, 2^{1213212112010} is an apocalyptic number.

1213212112010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213212112010 is a deficient number, since it is larger than the sum of its proper divisors (970569689626).

1213212112010 is a wasteful number, since it uses less digits than its factorization.

1213212112010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121321211208.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1213212112010 its reverse (102112123121), we get a palindrome (1315324235131).

The spelling of 1213212112010 in words is "one trillion, two hundred thirteen billion, two hundred twelve million, one hundred twelve thousand, ten".