221122210201 has 8 divisors (see below), whose sum is σ = 223984745600. Its totient is φ = 218261262960.

The previous prime is 221122210103. The next prime is 221122210207. The reversal of 221122210201 is 102012221122.

It is a happy number.

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-221122210201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221122210207) 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, 115491 + ... + 674968.

It is an arithmetic number, because the mean of its divisors is an integer number (27998093200).

Almost surely, 2^221122210201 is an apocalyptic number.

It is an amenable number.

221122210201 is a deficient number, since it is larger than the sum of its proper divisors (2862535399).

221122210201 is an equidigital number, since it uses as much as digits as its factorization.

221122210201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794079.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221122210201 its reverse (102012221122), we get a palindrome (323134431323).

The spelling of 221122210201 in words is "two hundred twenty-one billion, one hundred twenty-two million, two hundred ten thousand, two hundred one".