1212210020212 has 12 divisors (see below), whose sum is σ = 2134070336160. Its totient is φ = 602475638456.

The previous prime is 1212210020207. The next prime is 1212210020237. The reversal of 1212210020212 is 2120200122121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 907342162 + ... + 907343497.

It is an arithmetic number, because the mean of its divisors is an integer number (177839194680).

Almost surely, 2^{1212210020212} is an apocalyptic number.

It is an amenable number.

1212210020212 is a deficient number, since it is larger than the sum of its proper divisors (921860315948).

1212210020212 is a wasteful number, since it uses less digits than its factorization.

1212210020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814685830 (or 1814685828 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1212210020212 its reverse (2120200122121), we get a palindrome (3332410142333).

The spelling of 1212210020212 in words is "one trillion, two hundred twelve billion, two hundred ten million, twenty thousand, two hundred twelve".