212011121212 has 48 divisors (see below), whose sum is σ = 408874967424. Its totient is φ = 95386760000.

The previous prime is 212011121207. The next prime is 212011121233. The reversal of 212011121212 is 212121110212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27562287 + ... + 27569977.

It is an arithmetic number, because the mean of its divisors is an integer number (8518228488).

Almost surely, 2^212011121212 is an apocalyptic number.

212011121212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212011121212 is a deficient number, since it is larger than the sum of its proper divisors (196863846212).

212011121212 is a wasteful number, since it uses less digits than its factorization.

212011121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14010 (or 14008 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212011121212 its reverse (212121110212), we get a palindrome (424132231424).

The spelling of 212011121212 in words is "two hundred twelve billion, eleven million, one hundred twenty-one thousand, two hundred twelve".