1222121120069 has 2 divisors, whose sum is σ = 1222121120070. Its totient is φ = 1222121120068.

The previous prime is 1222121119993. The next prime is 1222121120083. The reversal of 1222121120069 is 9600211212221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 939081159844 + 283039960225 = 969062^2 + 532015^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222121120069 - 2¹⁶ = 1222121054533 is a prime.

It is a super-2 number, since 2×1222121120069² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222121120369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611060560034 + 611060560035.

It is an arithmetic number, because the mean of its divisors is an integer number (611060560035).

Almost surely, 2^{1222121120069} is an apocalyptic number.

It is an amenable number.

1222121120069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222121120069 is an equidigital number, since it uses as much as digits as its factorization.

1222121120069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 1222121120069 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred twenty thousand, sixty-nine".