13122111203212 has 24 divisors (see below), whose sum is σ = 26369792850240. Its totient is φ = 5650669895760.

The previous prime is 13122111203209. The next prime is 13122111203233. The reversal of 13122111203212 is 21230211122131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 7848151798 + ... + 7848153469.

It is an arithmetic number, because the mean of its divisors is an integer number (1098741368760).

Almost surely, 2^{13122111203212} is an apocalyptic number.

It is an amenable number.

13122111203212 is an abundant number, since it is smaller than the sum of its proper divisors (13247681647028).

13122111203212 is a wasteful number, since it uses less digits than its factorization.

13122111203212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15696305301 (or 15696305299 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 13122111203212 its reverse (21230211122131), we get a palindrome (34352322325343).

The spelling of 13122111203212 in words is "thirteen trillion, one hundred twenty-two billion, one hundred eleven million, two hundred three thousand, two hundred twelve".