212011110221012 has 12 divisors (see below), whose sum is σ = 373509506262900. Its totient is φ = 105294108431616.

The previous prime is 212011110221003. The next prime is 212011110221033. The reversal of 212011110221012 is 210122011110212.

It can be written as a sum of positive squares in 2 ways, for example, as 57059501643076 + 154951608577936 = 7553774^2 + 12447956^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177861669053 + ... + 177861670244.

It is an arithmetic number, because the mean of its divisors is an integer number (31125792188575).

Almost surely, 2^{212011110221012} is an apocalyptic number.

It is an amenable number.

212011110221012 is a deficient number, since it is larger than the sum of its proper divisors (161498396041888).

212011110221012 is a wasteful number, since it uses less digits than its factorization.

212011110221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355723339450 (or 355723339448 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 212011110221012 its reverse (210122011110212), we get a palindrome (422133121331224).

The spelling of 212011110221012 in words is "two hundred twelve trillion, eleven billion, one hundred ten million, two hundred twenty-one thousand, twelve".