1210210111012 has 24 divisors (see below), whose sum is σ = 2421369921600. Its totient is φ = 518457969120.

The previous prime is 1210210110937. The next prime is 1210210111073. The reversal of 1210210111012 is 2101110120121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1210210110983 and 1210210111001.

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 7 ways as a sum of consecutive naturals, for example, 8406814 + ... + 8549557.

It is an arithmetic number, because the mean of its divisors is an integer number (100890413400).

Almost surely, 2^{1210210111012} is an apocalyptic number.

It is an amenable number.

1210210111012 is an abundant number, since it is smaller than the sum of its proper divisors (1211159810588).

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

1210210111012 is a wasteful number, since it uses less digits than its factorization.

1210210111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16958931 (or 16958929 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1210210111012 its reverse (2101110120121), we get a palindrome (3311320231133).

The spelling of 1210210111012 in words is "one trillion, two hundred ten billion, two hundred ten million, one hundred eleven thousand, twelve".