221210224201 has 4 divisors (see below), whose sum is σ = 232852867600. Its totient is φ = 209567580804.

The previous prime is 221210224199. The next prime is 221210224241. The reversal of 221210224201 is 102422012122.

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 221210224201 - 2¹ = 221210224199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 11642643379 = 221210224201 / (2 + 2 + 1 + 2 + 1 + 0 + 2 + 2 + 4 + 2 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221210224241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5821321671 + ... + 5821321708.

It is an arithmetic number, because the mean of its divisors is an integer number (58213216900).

Almost surely, 2^221210224201 is an apocalyptic number.

It is an amenable number.

221210224201 is a deficient number, since it is larger than the sum of its proper divisors (11642643399).

221210224201 is a wasteful number, since it uses less digits than its factorization.

221210224201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11642643398.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 221210224201 its reverse (102422012122), we get a palindrome (323632236323).

The spelling of 221210224201 in words is "two hundred twenty-one billion, two hundred ten million, two hundred twenty-four thousand, two hundred one".