221112100002201 has 16 divisors (see below), whose sum is σ = 297067681880640. Its totient is φ = 146282300303360.

The previous prime is 221112100002173. The next prime is 221112100002217. The reversal of 221112100002201 is 102200001211122.

It is a cyclic number.

It is not a de Polignac number, because 221112100002201 - 2⁴² = 216714053491097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221112100002281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134671945 + ... + 136303913.

It is an arithmetic number, because the mean of its divisors is an integer number (18566730117540).

Almost surely, 2^{221112100002201} is an apocalyptic number.

It is an amenable number.

221112100002201 is a deficient number, since it is larger than the sum of its proper divisors (75955581878439).

221112100002201 is a wasteful number, since it uses less digits than its factorization.

221112100002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976856.

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

Adding to 221112100002201 its reverse (102200001211122), we get a palindrome (323312101213323).

The spelling of 221112100002201 in words is "two hundred twenty-one trillion, one hundred twelve billion, one hundred million, two thousand, two hundred one".