201323122202 has 16 divisors (see below), whose sum is σ = 302948459880. Its totient is φ = 100340577792.

The previous prime is 201323122193. The next prime is 201323122207. The reversal of 201323122202 is 202221323102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 192333996481 + 8989125721 = 438559^2 + 94811^2 .

It is a super-2 number, since 2×201323122202² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201323122207) 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, 1419074 + ... + 1554482.

Almost surely, 2^201323122202 is an apocalyptic number.

201323122202 is a deficient number, since it is larger than the sum of its proper divisors (101625337678).

201323122202 is a wasteful number, since it uses less digits than its factorization.

201323122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137777.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 201323122202 its reverse (202221323102), we get a palindrome (403544445304).

Subtracting 201323122202 from its reverse (202221323102), we obtain a square (898200900 = 29970²).

The spelling of 201323122202 in words is "two hundred one billion, three hundred twenty-three million, one hundred twenty-two thousand, two hundred two".