212210212001212 has 24 divisors (see below), whose sum is σ = 378407265500880. Its totient is φ = 104112051838080.

The previous prime is 212210212001209. The next prime is 212210212001213. The reversal of 212210212001212 is 212100212012212.

It is a self number, because there is not a number n which added to its sum of digits gives 212210212001212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212210212001213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2275129323 + ... + 2275222594.

It is an arithmetic number, because the mean of its divisors is an integer number (15766969395870).

Almost surely, 2^{212210212001212} is an apocalyptic number.

It is an amenable number.

212210212001212 is a deficient number, since it is larger than the sum of its proper divisors (166197053499668).

212210212001212 is a wasteful number, since it uses less digits than its factorization.

212210212001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4550352141 (or 4550352139 counting only the distinct ones).

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

Adding to 212210212001212 its reverse (212100212012212), we get a palindrome (424310424013424).

The spelling of 212210212001212 in words is "two hundred twelve trillion, two hundred ten billion, two hundred twelve million, one thousand, two hundred twelve".