212100010212212 has 24 divisors (see below), whose sum is σ = 387420859296576. Its totient is φ = 101410902726848.

The previous prime is 212100010212203. The next prime is 212100010212217. The reversal of 212100010212212 is 212212010001212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212100010212217) 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, 320492558 + ... + 321153669.

It is an arithmetic number, because the mean of its divisors is an integer number (16142535804024).

Almost surely, 2^{212100010212212} is an apocalyptic number.

It is an amenable number.

212100010212212 is a deficient number, since it is larger than the sum of its proper divisors (175320849084364).

212100010212212 is a wasteful number, since it uses less digits than its factorization.

212100010212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641649847 (or 641649845 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212100010212212 its reverse (212212010001212), we get a palindrome (424312020213424).

The spelling of 212100010212212 in words is "two hundred twelve trillion, one hundred billion, ten million, two hundred twelve thousand, two hundred twelve".