12211220202198 has 64 divisors (see below), whose sum is σ = 25055426317824. Its totient is φ = 3965207904000.

The previous prime is 12211220202191. The next prime is 12211220202199. The reversal of 12211220202198 is 89120202211221.

It is a super-2 number, since 2×12211220202198² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211220202191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1354840740 + ... + 1354849752.

It is an arithmetic number, because the mean of its divisors is an integer number (391491036216).

Almost surely, 2^{12211220202198} is an apocalyptic number.

12211220202198 is an abundant number, since it is smaller than the sum of its proper divisors (12844206115626).

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

12211220202198 is a wasteful number, since it uses less digits than its factorization.

12211220202198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16661.

The product of its (nonzero) digits is 4608, while the sum is 33.

The spelling of 12211220202198 in words is "twelve trillion, two hundred eleven billion, two hundred twenty million, two hundred two thousand, one hundred ninety-eight".