20223221013 has 12 divisors (see below), whose sum is σ = 29923790988. Its totient is φ = 13153314240.

The previous prime is 20223220991. The next prime is 20223221059. The reversal of 20223221013 is 31012232202.

It can be written as a sum of positive squares in 2 ways, for example, as 4393303524 + 15829917489 = 66282^2 + 125817^2 .

It is not a de Polignac number, because 20223221013 - 2⁶ = 20223220949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20223221113) 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 in 11 ways as a sum of consecutive naturals, for example, 27402370 + ... + 27403107.

It is an arithmetic number, because the mean of its divisors is an integer number (2493649249).

Almost surely, 2^20223221013 is an apocalyptic number.

It is an amenable number.

20223221013 is a deficient number, since it is larger than the sum of its proper divisors (9700569975).

20223221013 is a wasteful number, since it uses less digits than its factorization.

20223221013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54805524 (or 54805521 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20223221013 its reverse (31012232202), we get a palindrome (51235453215).

The spelling of 20223221013 in words is "twenty billion, two hundred twenty-three million, two hundred twenty-one thousand, thirteen".