12021200030000 has 200 divisors, whose sum is σ = 33311871513888. Its totient is φ = 4115414016000.

The previous prime is 12021200029933. The next prime is 12021200030093. The reversal of 12021200030000 is 3000212021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (200).

It is a super-2 number, since 2×12021200030000² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 46982414 + ... + 47237586.

Almost surely, 2^{12021200030000} is an apocalyptic number.

12021200030000 is a gapful number since it is divisible by the number (10) 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 12021200030000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16655935756944).

12021200030000 is an abundant number, since it is smaller than the sum of its proper divisors (21290671483888).

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

12021200030000 is an equidigital number, since it uses as much as digits as its factorization.

12021200030000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255881 (or 255860 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 12021200030000 its reverse (3000212021), we get a palindrome (12024200242021).

The spelling of 12021200030000 in words is "twelve trillion, twenty-one billion, two hundred million, thirty thousand".