12212222022200 has 48 divisors (see below), whose sum is σ = 28406556224160. Its totient is φ = 4882628160000.

The previous prime is 12212222022173. The next prime is 12212222022223. The reversal of 12212222022200 is 222022221221.

It is a super-3 number, since 3×12212222022200³ (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13695776 + ... + 14560175.

It is an arithmetic number, because the mean of its divisors is an integer number (591803254670).

Almost surely, 2^{12212222022200} is an apocalyptic number.

12212222022200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212222022200 is an abundant number, since it is smaller than the sum of its proper divisors (16194334201960).

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

12212222022200 is a wasteful number, since it uses less digits than its factorization.

12212222022200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28258128 (or 28258119 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 12212222022200 its reverse (222022221221), we get a palindrome (12434244243421).

The spelling of 12212222022200 in words is "twelve trillion, two hundred twelve billion, two hundred twenty-two million, twenty-two thousand, two hundred".