12212122021002 has 48 divisors (see below), whose sum is σ = 26500506626880. Its totient is φ = 4064415860736.

The previous prime is 12212122020979. The next prime is 12212122021007. The reversal of 12212122021002 is 20012022121221.

It is a happy number.

12212122021002 is a `hidden beast` number, since 1 + 221 + 212 + 20 + 210 + 0 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (12212122021007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68747274 + ... + 68924682.

It is an arithmetic number, because the mean of its divisors is an integer number (552093888060).

Almost surely, 2^{12212122021002} is an apocalyptic number.

12212122021002 is an abundant number, since it is smaller than the sum of its proper divisors (14288384605878).

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

12212122021002 is a wasteful number, since it uses less digits than its factorization.

12212122021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183307 (or 183304 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12212122021002 its reverse (20012022121221), we get a palindrome (32224144142223).

The spelling of 12212122021002 in words is "twelve trillion, two hundred twelve billion, one hundred twenty-two million, twenty-one thousand, two".