221000121002012 has 48 divisors (see below), whose sum is σ = 422173311759360. Its totient is φ = 100391756044800.

The previous prime is 221000121001883. The next prime is 221000121002071. The reversal of 221000121002012 is 210200121000122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 901436687 + ... + 901681817.

It is an arithmetic number, because the mean of its divisors is an integer number (8795277328320).

Almost surely, 2^{221000121002012} is an apocalyptic number.

221000121002012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221000121002012 is a deficient number, since it is larger than the sum of its proper divisors (201173190757348).

221000121002012 is a wasteful number, since it uses less digits than its factorization.

221000121002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257882 (or 257880 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221000121002012 its reverse (210200121000122), we get a palindrome (431200242002134).

The spelling of 221000121002012 in words is "two hundred twenty-one trillion, one hundred twenty-one million, two thousand, twelve".