212000001212 has 12 divisors (see below), whose sum is σ = 371067165840. Its totient is φ = 105980810976.

The previous prime is 212000001197. The next prime is 212000001221. The reversal of 212000001212 is 212100000212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212000001193 and 212000001202.

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, 4772537 + ... + 4816752.

It is an arithmetic number, because the mean of its divisors is an integer number (30922263820).

Almost surely, 2^212000001212 is an apocalyptic number.

It is an amenable number.

212000001212 is a deficient number, since it is larger than the sum of its proper divisors (159067164628).

212000001212 is a wasteful number, since it uses less digits than its factorization.

212000001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9594820 (or 9594818 counting only the distinct ones).

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

Adding to 212000001212 its reverse (212100000212), we get a palindrome (424100001424).

The spelling of 212000001212 in words is "two hundred twelve billion, one thousand, two hundred twelve".