13212120122212 has 24 divisors (see below), whose sum is σ = 25232581971072. Its totient is φ = 6003260680800.

The previous prime is 13212120122161. The next prime is 13212120122213. The reversal of 13212120122212 is 21222102121231.

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

It is not an unprimeable number, because it can be changed into a prime (13212120122213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56092783 + ... + 56327830.

It is an arithmetic number, because the mean of its divisors is an integer number (1051357582128).

Almost surely, 2^{13212120122212} is an apocalyptic number.

It is an amenable number.

13212120122212 is a deficient number, since it is larger than the sum of its proper divisors (12020461848860).

13212120122212 is a wasteful number, since it uses less digits than its factorization.

13212120122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112423299 (or 112423297 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 13212120122212 its reverse (21222102121231), we get a palindrome (34434222243443).

The spelling of 13212120122212 in words is "thirteen trillion, two hundred twelve billion, one hundred twenty million, one hundred twenty-two thousand, two hundred twelve".