221011200012 has 24 divisors (see below), whose sum is σ = 529630444336. Its totient is φ = 71679307968.

The previous prime is 221011200001. The next prime is 221011200031. The reversal of 221011200012 is 210002110122.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248886043 + ... + 248886930.

Almost surely, 2^221011200012 is an apocalyptic number.

It is an amenable number.

221011200012 is an abundant number, since it is smaller than the sum of its proper divisors (308619244324).

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

221011200012 is a wasteful number, since it uses less digits than its factorization.

221011200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497773017 (or 497773015 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 221011200012 its reverse (210002110122), we get a palindrome (431013310134).

The spelling of 221011200012 in words is "two hundred twenty-one billion, eleven million, two hundred thousand, twelve".