221430234010201 has 8 divisors (see below), whose sum is σ = 234455720723784. Its totient is φ = 208404767166720.

The previous prime is 221430234010189. The next prime is 221430234010211. The reversal of 221430234010201 is 102010432034122.

It can be written as a sum of positive squares in 4 ways, for example, as 63025355200201 + 158404878810000 = 7938851^2 + 12585900^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221430234010201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221430234010211) 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, 22230511 + ... + 30611371.

It is an arithmetic number, because the mean of its divisors is an integer number (29306965090473).

Almost surely, 2^{221430234010201} is an apocalyptic number.

It is an amenable number.

221430234010201 is a deficient number, since it is larger than the sum of its proper divisors (13025486713583).

221430234010201 is a wasteful number, since it uses less digits than its factorization.

221430234010201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9935051.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 221430234010201 its reverse (102010432034122), we get a palindrome (323440666044323).

The spelling of 221430234010201 in words is "two hundred twenty-one trillion, four hundred thirty billion, two hundred thirty-four million, ten thousand, two hundred one".