103211312212 has 12 divisors (see below), whose sum is σ = 180770195956. Its totient is φ = 51562684800.

The previous prime is 103211312179. The next prime is 103211312287. The reversal of 103211312212 is 212213112301.

103211312212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3889268496 + 99322043716 = 62364^2 + 315154^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 103211312212.

It is a congruent number.

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, 10737423 + ... + 10747030.

Almost surely, 2^103211312212 is an apocalyptic number.

It is an amenable number.

103211312212 is a deficient number, since it is larger than the sum of its proper divisors (77558883744).

103211312212 is a wasteful number, since it uses less digits than its factorization.

103211312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21485658 (or 21485656 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 103211312212 its reverse (212213112301), we get a palindrome (315424424513).

The spelling of 103211312212 in words is "one hundred three billion, two hundred eleven million, three hundred twelve thousand, two hundred twelve".