213103111122212 has 48 divisors (see below), whose sum is σ = 398889464425200. Its totient is φ = 99266568056832.

The previous prime is 213103111122163. The next prime is 213103111122257. The reversal of 213103111122212 is 212221111301312.

213103111122212 is digitally balanced in base 2, 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 8 ways, for example, as 15805522579456 + 197297588542756 = 3975616^2 + 14046266^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29520863 + ... + 36023430.

It is an arithmetic number, because the mean of its divisors is an integer number (8310197175525).

Almost surely, 2^{213103111122212} is an apocalyptic number.

It is an amenable number.

213103111122212 is a deficient number, since it is larger than the sum of its proper divisors (185786353302988).

213103111122212 is a wasteful number, since it uses less digits than its factorization.

213103111122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65544800 (or 65544798 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 213103111122212 its reverse (212221111301312), we get a palindrome (425324222423524).

The spelling of 213103111122212 in words is "two hundred thirteen trillion, one hundred three billion, one hundred eleven million, one hundred twenty-two thousand, two hundred twelve".