12211122122200 has 48 divisors (see below), whose sum is σ = 28392682752000. Its totient is φ = 4884135073920.

The previous prime is 12211122122167. The next prime is 12211122122231. The reversal of 12211122122200 is 222122111221.

It is a super-3 number, since 3×12211122122200³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 1172521 + ... + 5079079.

It is an arithmetic number, because the mean of its divisors is an integer number (591514224000).

Almost surely, 2^{12211122122200} is an apocalyptic number.

12211122122200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12211122122200 is an abundant number, since it is smaller than the sum of its proper divisors (16181560629800).

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

12211122122200 is a wasteful number, since it uses less digits than its factorization.

12211122122200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3922204 (or 3922195 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12211122122200 its reverse (222122111221), we get a palindrome (12433244233421).

The spelling of 12211122122200 in words is "twelve trillion, two hundred eleven billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred".