221132142201 has 16 divisors (see below), whose sum is σ = 295164858240. Its totient is φ = 147260505600.

The previous prime is 221132142193. The next prime is 221132142211. The reversal of 221132142201 is 102241231122.

It is a happy number.

It is not a de Polignac number, because 221132142201 - 2³ = 221132142193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (221132142211) 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, 15382345 + ... + 15396713.

It is an arithmetic number, because the mean of its divisors is an integer number (18447803640).

Almost surely, 2^221132142201 is an apocalyptic number.

It is an amenable number.

221132142201 is a deficient number, since it is larger than the sum of its proper divisors (74032716039).

221132142201 is a wasteful number, since it uses less digits than its factorization.

221132142201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19616.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 221132142201 its reverse (102241231122), we get a palindrome (323373373323).

It can be divided in two parts, 2211321 and 42201, that added together give a palindrome (2253522).

The spelling of 221132142201 in words is "two hundred twenty-one billion, one hundred thirty-two million, one hundred forty-two thousand, two hundred one".