2122202222201 has 4 divisors (see below), whose sum is σ = 2122219442532. Its totient is φ = 2122185001872.

The previous prime is 2122202222191. The next prime is 2122202222233. The reversal of 2122202222201 is 1022222022212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1742006662201 + 380195560000 = 1319851^2 + 616600^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122202222201 - 2⁶ = 2122202222137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2122202722201) 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, 8423966 + ... + 8672231.

It is an arithmetic number, because the mean of its divisors is an integer number (530554860633).

Almost surely, 2^{2122202222201} is an apocalyptic number.

It is an amenable number.

2122202222201 is a deficient number, since it is larger than the sum of its proper divisors (17220331).

2122202222201 is a wasteful number, since it uses less digits than its factorization.

2122202222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17220330.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 2122202222201 its reverse (1022222022212), we get a palindrome (3144424244413).

The spelling of 2122202222201 in words is "two trillion, one hundred twenty-two billion, two hundred two million, two hundred twenty-two thousand, two hundred one".