2012121222300 has 432 divisors, whose sum is σ = 7707461815872. Its totient is φ = 428571648000.

The previous prime is 2012121222299. The next prime is 2012121222313. The reversal of 2012121222300 is 32221212102.

2012121222300 is a `hidden beast` number, since 2 + 0 + 121 + 21 + 222 + 300 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 10724094 + ... + 10910106.

It is an arithmetic number, because the mean of its divisors is an integer number (17841346796).

Almost surely, 2^{2012121222300} is an apocalyptic number.

2012121222300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2012121222300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3853730907936).

2012121222300 is an abundant number, since it is smaller than the sum of its proper divisors (5695340593572).

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

2012121222300 is a wasteful number, since it uses less digits than its factorization.

2012121222300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186158 (or 186148 counting only the distinct ones).

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

Adding to 2012121222300 its reverse (32221212102), we get a palindrome (2044342434402).

The spelling of 2012121222300 in words is "two trillion, twelve billion, one hundred twenty-one million, two hundred twenty-two thousand, three hundred".