201020222122 has 8 divisors (see below), whose sum is σ = 303196247172. Its totient is φ = 99954806400.

The previous prime is 201020222101. The next prime is 201020222153. The reversal of 201020222122 is 221222020102.

It can be written as a sum of positive squares in 2 ways, for example, as 123602168041 + 77418054081 = 351571^2 + 278241^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 201020222096 and 201020222105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277651879 + ... + 277652602.

Almost surely, 2^201020222122 is an apocalyptic number.

201020222122 is a deficient number, since it is larger than the sum of its proper divisors (102176025050).

201020222122 is a wasteful number, since it uses less digits than its factorization.

201020222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555304664.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 201020222122 its reverse (221222020102), we get a palindrome (422242242224).

The spelling of 201020222122 in words is "two hundred one billion, twenty million, two hundred twenty-two thousand, one hundred twenty-two".