1022221202213 has 4 divisors (see below), whose sum is σ = 1022336572908. Its totient is φ = 1022105831520.

The previous prime is 1022221202137. The next prime is 1022221202227. The reversal of 1022221202213 is 3122021222201.

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 1004739602689 + 17481599524 = 1002367^2 + 132218^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022221202213 - 2³⁴ = 1005041333029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022221202243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57672056 + ... + 57689777.

It is an arithmetic number, because the mean of its divisors is an integer number (255584143227).

Almost surely, 2^{1022221202213} is an apocalyptic number.

It is an amenable number.

1022221202213 is a deficient number, since it is larger than the sum of its proper divisors (115370695).

1022221202213 is an equidigital number, since it uses as much as digits as its factorization.

1022221202213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115370694.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1022221202213 its reverse (3122021222201), we get a palindrome (4144242424414).

The spelling of 1022221202213 in words is "one trillion, twenty-two billion, two hundred twenty-one million, two hundred two thousand, two hundred thirteen".