22221202013 has 4 divisors (see below), whose sum is σ = 22222986720. Its totient is φ = 22219417308.

The previous prime is 22221202007. The next prime is 22221202021. The reversal of 22221202013 is 31020212222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22221202013 - 2⁶ = 22221201949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22221201982 and 22221202000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22227202013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 873545 + ... + 898622.

It is an arithmetic number, because the mean of its divisors is an integer number (5555746680).

Almost surely, 2^22221202013 is an apocalyptic number.

It is an amenable number.

22221202013 is a deficient number, since it is larger than the sum of its proper divisors (1784707).

22221202013 is a wasteful number, since it uses less digits than its factorization.

22221202013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784706.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22221202013 its reverse (31020212222), we get a palindrome (53241414235).

The spelling of 22221202013 in words is "twenty-two billion, two hundred twenty-one million, two hundred two thousand, thirteen".