221112100201 has 4 divisors (see below), whose sum is σ = 221134205952. Its totient is φ = 221089994452.

The previous prime is 221112100169. The next prime is 221112100219. The reversal of 221112100201 is 102001211122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221112100201 - 2⁵ = 221112100169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221112100241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11037865 + ... + 11057878.

It is an arithmetic number, because the mean of its divisors is an integer number (55283551488).

Almost surely, 2^221112100201 is an apocalyptic number.

It is an amenable number.

221112100201 is a deficient number, since it is larger than the sum of its proper divisors (22105751).

221112100201 is a wasteful number, since it uses less digits than its factorization.

221112100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22105750.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221112100201 its reverse (102001211122), we get a palindrome (323113311323).

The spelling of 221112100201 in words is "two hundred twenty-one billion, one hundred twelve million, one hundred thousand, two hundred one".