2312201212500 has 144 divisors (see below), whose sum is σ = 7036686373248. Its totient is φ = 589778640000.

The previous prime is 2312201212499. The next prime is 2312201212501. The reversal of 2312201212500 is 52121022132.

It is an interprime number because it is at equal distance from previous prime (2312201212499) and next prime (2312201212501).

It is a super-3 number, since 3×2312201212500³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312201212501) 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, 477907 + ... + 2202906.

It is an arithmetic number, because the mean of its divisors is an integer number (48865877592).

Almost surely, 2^{2312201212500} is an apocalyptic number.

2312201212500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2312201212500 is an abundant number, since it is smaller than the sum of its proper divisors (4724485160748).

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

2312201212500 is a wasteful number, since it uses less digits than its factorization.

2312201212500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680868 (or 2680846 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 2312201212500 its reverse (52121022132), we get a palindrome (2364322234632).

The spelling of 2312201212500 in words is "two trillion, three hundred twelve billion, two hundred one million, two hundred twelve thousand, five hundred".