12021221000202 has 64 divisors (see below), whose sum is σ = 24629028480000. Its totient is φ = 3910311554688.

The previous prime is 12021221000167. The next prime is 12021221000249. The reversal of 12021221000202 is 20200012212021.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 659302078 + ... + 659320310.

It is an arithmetic number, because the mean of its divisors is an integer number (384828570000).

Almost surely, 2^{12021221000202} is an apocalyptic number.

12021221000202 is an abundant number, since it is smaller than the sum of its proper divisors (12607807479798).

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

12021221000202 is a wasteful number, since it uses less digits than its factorization.

12021221000202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31835.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12021221000202 its reverse (20200012212021), we get a palindrome (32221233212223).

The spelling of 12021221000202 in words is "twelve trillion, twenty-one billion, two hundred twenty-one million, two hundred two", and thus it is an aban number.