22219999993 has 2 divisors, whose sum is σ = 22219999994. Its totient is φ = 22219999992.

The previous prime is 22219999987. The next prime is 22220000029. The reversal of 22219999993 is 39999991222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17488211049 + 4731788944 = 132243^2 + 68788^2 .

It is a cyclic number.

It is not a de Polignac number, because 22219999993 - 2²¹ = 22217902841 is a prime.

It is not a weakly prime, because it can be changed into another prime (22219999913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11109999996 + 11109999997.

It is an arithmetic number, because the mean of its divisors is an integer number (11109999997).

Almost surely, 2^22219999993 is an apocalyptic number.

It is an amenable number.

22219999993 is a deficient number, since it is larger than the sum of its proper divisors (1).

22219999993 is an equidigital number, since it uses as much as digits as its factorization.

22219999993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12754584, while the sum is 64.

The spelling of 22219999993 in words is "twenty-two billion, two hundred nineteen million, nine hundred ninety-nine thousand, nine hundred ninety-three".