22120209938993 has 2 divisors, whose sum is σ = 22120209938994. Its totient is φ = 22120209938992.

The previous prime is 22120209938977. The next prime is 22120209938999. The reversal of 22120209938993 is 39983990202122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15833897347489 + 6286312591504 = 3979183^2 + 2507252^2 .

It is a cyclic number.

It is not a de Polignac number, because 22120209938993 - 2⁴ = 22120209938977 is a prime.

It is not a weakly prime, because it can be changed into another prime (22120209938999) 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 as a sum of consecutive naturals, namely, 11060104969496 + 11060104969497.

It is an arithmetic number, because the mean of its divisors is an integer number (11060104969497).

Almost surely, 2^{22120209938993} is an apocalyptic number.

It is an amenable number.

22120209938993 is a deficient number, since it is larger than the sum of its proper divisors (1).

22120209938993 is an equidigital number, since it uses as much as digits as its factorization.

22120209938993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7558272, while the sum is 59.

The spelling of 22120209938993 in words is "twenty-two trillion, one hundred twenty billion, two hundred nine million, nine hundred thirty-eight thousand, nine hundred ninety-three".