221201202110001 has 8 divisors (see below), whose sum is σ = 295043407998720. Its totient is φ = 147413232147312.

The previous prime is 221201202109967. The next prime is 221201202110017. The reversal of 221201202110001 is 100011202102122.

221201202110001 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221201202110001 - 2⁷ = 221201202109873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221201202114001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13558971990 + ... + 13558988303.

It is an arithmetic number, because the mean of its divisors is an integer number (36880425999840).

Almost surely, 2^{221201202110001} is an apocalyptic number.

It is an amenable number.

221201202110001 is a deficient number, since it is larger than the sum of its proper divisors (73842205888719).

221201202110001 is a wasteful number, since it uses less digits than its factorization.

221201202110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27117963015.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221201202110001 its reverse (100011202102122), we get a palindrome (321212404212123).

The spelling of 221201202110001 in words is "two hundred twenty-one trillion, two hundred one billion, two hundred two million, one hundred ten thousand, one".