212220022012 has 12 divisors (see below), whose sum is σ = 372579204816. Its totient is φ = 105768820640.

The previous prime is 212220021983. The next prime is 212220022031. The reversal of 212220022012 is 210220022212.

212220022012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85296193 + ... + 85298680.

It is an arithmetic number, because the mean of its divisors is an integer number (31048267068).

Almost surely, 2^212220022012 is an apocalyptic number.

It is an amenable number.

212220022012 is a deficient number, since it is larger than the sum of its proper divisors (160359182804).

212220022012 is a wasteful number, since it uses less digits than its factorization.

212220022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170595188 (or 170595186 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 212220022012 its reverse (210220022212), we get a palindrome (422440044224).

The spelling of 212220022012 in words is "two hundred twelve billion, two hundred twenty million, twenty-two thousand, twelve".