12221232313300 has 18 divisors (see below), whose sum is σ = 26520074120078. Its totient is φ = 4888492925280.

The previous prime is 12221232313271. The next prime is 12221232313357. The reversal of 12221232313300 is 331323212221.

It can be written as a sum of positive squares in 3 ways, for example, as 17011463184 + 12204220850116 = 130428^2 + 3493454^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61106161467 + ... + 61106161666.

Almost surely, 2^{12221232313300} is an apocalyptic number.

12221232313300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221232313300 is an abundant number, since it is smaller than the sum of its proper divisors (14298841806778).

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

12221232313300 is a wasteful number, since it uses less digits than its factorization.

12221232313300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122212323147 (or 122212323140 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 12221232313300 its reverse (331323212221), we get a palindrome (12552555525521).

The spelling of 12221232313300 in words is "twelve trillion, two hundred twenty-one billion, two hundred thirty-two million, three hundred thirteen thousand, three hundred".