202120312322 has 4 divisors (see below), whose sum is σ = 303180468486. Its totient is φ = 101060156160.

The previous prime is 202120312253. The next prime is 202120312327. The reversal of 202120312322 is 223213021202.

It is a happy number.

202120312322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 223213021202 = 2 ⋅111606510601.

It can be written as a sum of positive squares in only one way, i.e., 180836712001 + 21283600321 = 425249^2 + 145889^2 .

It is a super-3 number, since 3×202120312322³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202120312294 and 202120312303.

It is not an unprimeable number, because it can be changed into a prime (202120312327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50530078079 + ... + 50530078082.

Almost surely, 2^202120312322 is an apocalyptic number.

202120312322 is a deficient number, since it is larger than the sum of its proper divisors (101060156164).

202120312322 is a wasteful number, since it uses less digits than its factorization.

202120312322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101060156163.

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

Adding to 202120312322 its reverse (223213021202), we get a palindrome (425333333524).

The spelling of 202120312322 in words is "two hundred two billion, one hundred twenty million, three hundred twelve thousand, three hundred twenty-two".