22120184869 has 2 divisors, whose sum is σ = 22120184870. Its totient is φ = 22120184868.

The previous prime is 22120184813. The next prime is 22120184873. The reversal of 22120184869 is 96848102122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17504613025 + 4615571844 = 132305^2 + 67938^2 .

It is a cyclic number.

It is not a de Polignac number, because 22120184869 - 2¹⁹ = 22119660581 is a prime.

It is a super-2 number, since 2×22120184869² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22120184809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060092434 + 11060092435.

It is an arithmetic number, because the mean of its divisors is an integer number (11060092435).

Almost surely, 2^22120184869 is an apocalyptic number.

It is an amenable number.

22120184869 is a deficient number, since it is larger than the sum of its proper divisors (1).

22120184869 is an equidigital number, since it uses as much as digits as its factorization.

22120184869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 43.

The spelling of 22120184869 in words is "twenty-two billion, one hundred twenty million, one hundred eighty-four thousand, eight hundred sixty-nine".