12311220200202 has 96 divisors (see below), whose sum is σ = 34487997433344. Its totient is φ = 3197719522800.

The previous prime is 12311220200107. The next prime is 12311220200207. The reversal of 12311220200202 is 20200202211321.

12311220200202 is a `hidden beast` number, since 1 + 231 + 12 + 20 + 200 + 202 = 666.

It is a super-2 number, since 2×12311220200202² (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 not an unprimeable number, because it can be changed into a prime (12311220200207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 164454324 + ... + 164529167.

It is an arithmetic number, because the mean of its divisors is an integer number (359249973264).

Almost surely, 2^{12311220200202} is an apocalyptic number.

12311220200202 is an abundant number, since it is smaller than the sum of its proper divisors (22176777233142).

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

12311220200202 is a wasteful number, since it uses less digits than its factorization.

12311220200202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328983526 (or 328983514 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12311220200202 its reverse (20200202211321), we get a palindrome (32511422411523).

The spelling of 12311220200202 in words is "twelve trillion, three hundred eleven billion, two hundred twenty million, two hundred thousand, two hundred two".