12212111122002 has 32 divisors (see below), whose sum is σ = 29605117872960. Its totient is φ = 3700639733760.

The previous prime is 12212111121953. The next prime is 12212111122037. The reversal of 12212111122002 is 20022111121221.

12212111122002 is a `hidden beast` number, since 1 + 221 + 211 + 11 + 220 + 0 + 2 = 666.

It is a super-2 number, since 2×12212111122002² (a number of 27 digits) contains 22 as substring.

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

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10279554223 + ... + 10279555410.

It is an arithmetic number, because the mean of its divisors is an integer number (925159933530).

Almost surely, 2^{12212111122002} is an apocalyptic number.

12212111122002 is an abundant number, since it is smaller than the sum of its proper divisors (17393006750958).

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

12212111122002 is a wasteful number, since it uses less digits than its factorization.

12212111122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20559109655 (or 20559109649 counting only the distinct ones).

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

Adding to 12212111122002 its reverse (20022111121221), we get a palindrome (32234222243223).

The spelling of 12212111122002 in words is "twelve trillion, two hundred twelve billion, one hundred eleven million, one hundred twenty-two thousand, two".