222001777913 has 2 divisors, whose sum is σ = 222001777914. Its totient is φ = 222001777912.

The previous prime is 222001777903. The next prime is 222001777973. The reversal of 222001777913 is 319777100222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192292774144 + 29709003769 = 438512^2 + 172363^2 .

It is a cyclic number.

It is not a de Polignac number, because 222001777913 - 2¹⁰ = 222001776889 is a prime.

It is not a weakly prime, because it can be changed into another prime (222001777903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111000888956 + 111000888957.

It is an arithmetic number, because the mean of its divisors is an integer number (111000888957).

Almost surely, 2^222001777913 is an apocalyptic number.

It is an amenable number.

222001777913 is a deficient number, since it is larger than the sum of its proper divisors (1).

222001777913 is an equidigital number, since it uses as much as digits as its factorization.

222001777913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 74088, while the sum is 41.

The spelling of 222001777913 in words is "two hundred twenty-two billion, one million, seven hundred seventy-seven thousand, nine hundred thirteen".