20122110202201 has 6 divisors (see below), whose sum is σ = 23407352684250. Its totient is φ = 17247523030416.

The previous prime is 20122110202177. The next prime is 20122110202217. The reversal of 20122110202201 is 10220201122102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11274317175625 + 8847793026576 = 3357725^2 + 2974524^2 .

It is not a de Polignac number, because 20122110202201 - 2⁹ = 20122110201689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20122110202231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 205327655076 + ... + 205327655173.

It is an arithmetic number, because the mean of its divisors is an integer number (3901225447375).

Almost surely, 2^{20122110202201} is an apocalyptic number.

It is an amenable number.

20122110202201 is a deficient number, since it is larger than the sum of its proper divisors (3285242482049).

20122110202201 is an equidigital number, since it uses as much as digits as its factorization.

20122110202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410655310263 (or 410655310256 counting only the distinct ones).

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

Adding to 20122110202201 its reverse (10220201122102), we get a palindrome (30342311324303).

The spelling of 20122110202201 in words is "twenty trillion, one hundred twenty-two billion, one hundred ten million, two hundred two thousand, two hundred one".