1210111010212 has 24 divisors (see below), whose sum is σ = 2280871305216. Its totient is φ = 558444820128.

The previous prime is 1210111010179. The next prime is 1210111010219. The reversal of 1210111010212 is 2120101110121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1210111010192 and 1210111010201.

It is not an unprimeable number, because it can be changed into a prime (1210111010219) by changing a digit.

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, 982948 + ... + 1840219.

It is an arithmetic number, because the mean of its divisors is an integer number (95036304384).

Almost surely, 2^{1210111010212} is an apocalyptic number.

It is an amenable number.

1210111010212 is a deficient number, since it is larger than the sum of its proper divisors (1070760295004).

1210111010212 is a wasteful number, since it uses less digits than its factorization.

1210111010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2831427 (or 2831425 counting only the distinct ones).

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

Adding to 1210111010212 its reverse (2120101110121), we get a palindrome (3330212120333).

Subtracting 1210111010212 from its reverse (2120101110121), we obtain a palindrome (909990099909).

The spelling of 1210111010212 in words is "one trillion, two hundred ten billion, one hundred eleven million, ten thousand, two hundred twelve".