212001212 has 24 divisors (see below), whose sum is σ = 387695616. Its totient is φ = 101244528.

The previous prime is 212001149. The next prime is 212001233. The reversal of 212001212 is 212100212.

It is a happy number.

212001212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212001193 and 212001202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87773 + ... + 90155.

It is an arithmetic number, because the mean of its divisors is an integer number (16153984).

Almost surely, 2^212001212 is an apocalyptic number.

It is an amenable number.

212001212 is a deficient number, since it is larger than the sum of its proper divisors (175694404).

212001212 is a wasteful number, since it uses less digits than its factorization.

212001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3377 (or 3375 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 212001212 is about 14560.2613987524. The cubic root of 212001212 is about 596.2743320664.

Adding to 212001212 its reverse (212100212), we get a palindrome (424101424).

The spelling of 212001212 in words is "two hundred twelve million, one thousand, two hundred twelve".