201122102221 has 8 divisors (see below), whose sum is σ = 210235389120. Its totient is φ = 192039552672.

The previous prime is 201122102179. The next prime is 201122102227. The reversal of 201122102221 is 122201221102.

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 not a de Polignac number, because 201122102221 - 2⁹ = 201122101709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201122102195 and 201122102204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201122102227) 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, 7670955 + ... + 7697128.

It is an arithmetic number, because the mean of its divisors is an integer number (26279423640).

Almost surely, 2^201122102221 is an apocalyptic number.

It is an amenable number.

201122102221 is a deficient number, since it is larger than the sum of its proper divisors (9113286899).

201122102221 is a wasteful number, since it uses less digits than its factorization.

201122102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15368675.

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

Adding to 201122102221 its reverse (122201221102), we get a palindrome (323323323323).

The spelling of 201122102221 in words is "two hundred one billion, one hundred twenty-two million, one hundred two thousand, two hundred twenty-one".