121100211220069 has 2 divisors, whose sum is σ = 121100211220070. Its totient is φ = 121100211220068.

The previous prime is 121100211220039. The next prime is 121100211220111. The reversal of 121100211220069 is 960022112001121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89744265489025 + 31355945731044 = 9473345^2 + 5599638^2 .

It is a cyclic number.

It is not a de Polignac number, because 121100211220069 - 2¹⁵ = 121100211187301 is a prime.

It is a super-2 number, since 2×121100211220069² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121100211220039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550105610034 + 60550105610035.

It is an arithmetic number, because the mean of its divisors is an integer number (60550105610035).

Almost surely, 2^{121100211220069} is an apocalyptic number.

It is an amenable number.

121100211220069 is a deficient number, since it is larger than the sum of its proper divisors (1).

121100211220069 is an equidigital number, since it uses as much as digits as its factorization.

121100211220069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 28.

The spelling of 121100211220069 in words is "one hundred twenty-one trillion, one hundred billion, two hundred eleven million, two hundred twenty thousand, sixty-nine".