221011220200012 has 24 divisors (see below), whose sum is σ = 427710381314832. Its totient is φ = 99083486016000.

The previous prime is 221011220199989. The next prime is 221011220200049. The reversal of 221011220200012 is 210002022110122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34403984989 + ... + 34403991412.

It is an arithmetic number, because the mean of its divisors is an integer number (17821265888118).

Almost surely, 2^{221011220200012} is an apocalyptic number.

221011220200012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221011220200012 is a deficient number, since it is larger than the sum of its proper divisors (206699161114820).

221011220200012 is a wasteful number, since it uses less digits than its factorization.

221011220200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68807976489 (or 68807976487 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221011220200012 its reverse (210002022110122), we get a palindrome (431013242310134).

The spelling of 221011220200012 in words is "two hundred twenty-one trillion, eleven billion, two hundred twenty million, two hundred thousand, twelve".