211212210000012 has 24 divisors (see below), whose sum is σ = 530738373846576. Its totient is φ = 64988372307648.

The previous prime is 211212210000007. The next prime is 211212210000023. The reversal of 211212210000012 is 210000012212112.

It is a super-3 number, since 3×211212210000012³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 211212209999946 and 211212210000000.

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, 676962211383 + ... + 676962211694.

It is an arithmetic number, because the mean of its divisors is an integer number (22114098910274).

Almost surely, 2^{211212210000012} is an apocalyptic number.

It is an amenable number.

211212210000012 is an abundant number, since it is smaller than the sum of its proper divisors (319526163846564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211212210000012 is a wasteful number, since it uses less digits than its factorization.

211212210000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353924423097 (or 1353924423095 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 211212210000012 its reverse (210000012212112), we get a palindrome (421212222212124).

The spelling of 211212210000012 in words is "two hundred eleven trillion, two hundred twelve billion, two hundred ten million, twelve", and thus it is an aban number.