212311222108 has 24 divisors (see below), whose sum is σ = 375320211840. Its totient is φ = 105077419200.

The previous prime is 212311222099. The next prime is 212311222111. The reversal of 212311222108 is 801222113212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1545685 + ... + 1677427.

It is an arithmetic number, because the mean of its divisors is an integer number (15638342160).

Almost surely, 2^212311222108 is an apocalyptic number.

It is an amenable number.

212311222108 is a deficient number, since it is larger than the sum of its proper divisors (163008989732).

212311222108 is a wasteful number, since it uses less digits than its factorization.

212311222108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135837 (or 135835 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The spelling of 212311222108 in words is "two hundred twelve billion, three hundred eleven million, two hundred twenty-two thousand, one hundred eight".