12021220201000 has 64 divisors (see below), whose sum is σ = 28167113295360. Its totient is φ = 4802085000000.

The previous prime is 12021220200991. The next prime is 12021220201009. The reversal of 12021220201000 is 10202212021.

It is a happy number.

12021220201000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12021220200991) and next prime (12021220201009).

It is not an unprimeable number, because it can be changed into a prime (12021220201009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7252476 + ... + 8754475.

It is an arithmetic number, because the mean of its divisors is an integer number (440111145240).

Almost surely, 2^{12021220201000} is an apocalyptic number.

12021220201000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021220201000 is an abundant number, since it is smaller than the sum of its proper divisors (16145893094360).

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

12021220201000 is a wasteful number, since it uses less digits than its factorization.

12021220201000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16007723 (or 16007709 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12021220201000 its reverse (10202212021), we get a palindrome (12031422413021).

The spelling of 12021220201000 in words is "twelve trillion, twenty-one billion, two hundred twenty million, two hundred one thousand".