12002211211212 has 72 divisors (see below), whose sum is σ = 31463321890000. Its totient is φ = 4000643571456.

The previous prime is 12002211211189. The next prime is 12002211211229. The reversal of 12002211211212 is 21211211220021.

12002211211212 is a `hidden beast` number, since 1 + 20 + 0 + 221 + 1 + 211 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50667864 + ... + 50904192.

Almost surely, 2^{12002211211212} is an apocalyptic number.

12002211211212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12002211211212 is an abundant number, since it is smaller than the sum of its proper divisors (19461110678788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12002211211212 is a wasteful number, since it uses less digits than its factorization.

12002211211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288597 (or 288583 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12002211211212 its reverse (21211211220021), we get a palindrome (33213422431233).

The spelling of 12002211211212 in words is "twelve trillion, two billion, two hundred eleven million, two hundred eleven thousand, two hundred twelve".