12212112121002 has 32 divisors (see below), whose sum is σ = 27294894164160. Its totient is φ = 4047173956080.

The previous prime is 12212112120983. The next prime is 12212112121103. The reversal of 12212112121002 is 20012121121221.

12212112121002 is a `hidden beast` number, since 1 + 221 + 211 + 21 + 210 + 0 + 2 = 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 15 ways as a sum of consecutive naturals, for example, 653604024 + ... + 653622707.

It is an arithmetic number, because the mean of its divisors is an integer number (852965442630).

Almost surely, 2^{12212112121002} is an apocalyptic number.

12212112121002 is an abundant number, since it is smaller than the sum of its proper divisors (15082782043158).

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

12212112121002 is a wasteful number, since it uses less digits than its factorization.

12212112121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307226915 (or 1307226909 counting only the distinct ones).

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

Adding to 12212112121002 its reverse (20012121121221), we get a palindrome (32224233242223).

The spelling of 12212112121002 in words is "twelve trillion, two hundred twelve billion, one hundred twelve million, one hundred twenty-one thousand, two".