22155260069 has 2 divisors, whose sum is σ = 22155260070. Its totient is φ = 22155260068.

The previous prime is 22155260033. The next prime is 22155260089. The reversal of 22155260069 is 96006255122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18093747169 + 4061512900 = 134513^2 + 63730^2 .

It is a cyclic number.

It is not a de Polignac number, because 22155260069 - 2¹⁶ = 22155194533 is a prime.

It is a super-2 number, since 2×22155260069² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22155260009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11077630034 + 11077630035.

It is an arithmetic number, because the mean of its divisors is an integer number (11077630035).

Almost surely, 2^22155260069 is an apocalyptic number.

It is an amenable number.

22155260069 is a deficient number, since it is larger than the sum of its proper divisors (1).

22155260069 is an equidigital number, since it uses as much as digits as its factorization.

22155260069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 22155260069 in words is "twenty-two billion, one hundred fifty-five million, two hundred sixty thousand, sixty-nine".