212122201012 has 12 divisors (see below), whose sum is σ = 374889237156. Its totient is φ = 105010990400.

The previous prime is 212122201003. The next prime is 212122201043. The reversal of 212122201012 is 210102221212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 118684384036 + 93437816976 = 344506^2 + 305676^2 .

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, 262527073 + ... + 262527880.

It is an arithmetic number, because the mean of its divisors is an integer number (31240769763).

Almost surely, 2^212122201012 is an apocalyptic number.

It is an amenable number.

212122201012 is a deficient number, since it is larger than the sum of its proper divisors (162767036144).

212122201012 is a wasteful number, since it uses less digits than its factorization.

212122201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525055058 (or 525055056 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212122201012 its reverse (210102221212), we get a palindrome (422224422224).

The spelling of 212122201012 in words is "two hundred twelve billion, one hundred twenty-two million, two hundred one thousand, twelve".