212011122212 has 12 divisors (see below), whose sum is σ = 371042855820. Its totient is φ = 105998877696.

The previous prime is 212011122181. The next prime is 212011122233. The reversal of 212011122212 is 212221110212.

It can be written as a sum of positive squares in 2 ways, for example, as 55326566656 + 156684555556 = 235216^2 + 395834^2 .

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, 1599137 + ... + 1726632.

It is an arithmetic number, because the mean of its divisors is an integer number (30920237985).

Almost surely, 2^212011122212 is an apocalyptic number.

It is an amenable number.

212011122212 is a deficient number, since it is larger than the sum of its proper divisors (159031733608).

212011122212 is a wasteful number, since it uses less digits than its factorization.

212011122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341710 (or 3341708 counting only the distinct ones).

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

Adding to 212011122212 its reverse (212221110212), we get a palindrome (424232232424).

The spelling of 212011122212 in words is "two hundred twelve billion, eleven million, one hundred twenty-two thousand, two hundred twelve".