202222302021 has 6 divisors (see below), whose sum is σ = 292098880710. Its totient is φ = 134814868008.

The previous prime is 202222302017. The next prime is 202222302043. The reversal of 202222302021 is 120203222202.

It can be written as a sum of positive squares in only one way, i.e., 169940993121 + 32281308900 = 412239^2 + 179670^2 .

It is not a de Polignac number, because 202222302021 - 2² = 202222302017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202222301985 and 202222302003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202222302001) 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, 11234572326 + ... + 11234572343.

It is an arithmetic number, because the mean of its divisors is an integer number (48683146785).

Almost surely, 2^202222302021 is an apocalyptic number.

It is an amenable number.

202222302021 is a deficient number, since it is larger than the sum of its proper divisors (89876578689).

202222302021 is a wasteful number, since it uses less digits than its factorization.

202222302021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22469144675 (or 22469144672 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 202222302021 its reverse (120203222202), we get a palindrome (322425524223).

The spelling of 202222302021 in words is "two hundred two billion, two hundred twenty-two million, three hundred two thousand, twenty-one".