222038581813 has 2 divisors, whose sum is σ = 222038581814. Its totient is φ = 222038581812.

The previous prime is 222038581783. The next prime is 222038581841. The reversal of 222038581813 is 318185830222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213445848004 + 8592733809 = 462002^2 + 92697^2 .

It is a cyclic number.

It is not a de Polignac number, because 222038581813 - 2²⁹ = 221501710901 is a prime.

It is a super-2 number, since 2×222038581813² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222038581813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222038581873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111019290906 + 111019290907.

It is an arithmetic number, because the mean of its divisors is an integer number (111019290907).

Almost surely, 2^222038581813 is an apocalyptic number.

It is an amenable number.

222038581813 is a deficient number, since it is larger than the sum of its proper divisors (1).

222038581813 is an equidigital number, since it uses as much as digits as its factorization.

222038581813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 184320, while the sum is 43.

The spelling of 222038581813 in words is "two hundred twenty-two billion, thirty-eight million, five hundred eighty-one thousand, eight hundred thirteen".