222511838993 has 2 divisors, whose sum is σ = 222511838994. Its totient is φ = 222511838992.

The previous prime is 222511838933. The next prime is 222511839031. The reversal of 222511838993 is 399838115222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184807131664 + 37704707329 = 429892^2 + 194177^2 .

It is a cyclic number.

It is not a de Polignac number, because 222511838993 - 2⁶ = 222511838929 is a prime.

It is not a weakly prime, because it can be changed into another prime (222511838933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111255919496 + 111255919497.

It is an arithmetic number, because the mean of its divisors is an integer number (111255919497).

Almost surely, 2^222511838993 is an apocalyptic number.

It is an amenable number.

222511838993 is a deficient number, since it is larger than the sum of its proper divisors (1).

222511838993 is an equidigital number, since it uses as much as digits as its factorization.

222511838993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 53.

The spelling of 222511838993 in words is "two hundred twenty-two billion, five hundred eleven million, eight hundred thirty-eight thousand, nine hundred ninety-three".