1101211222129 has 2 divisors, whose sum is σ = 1101211222130. Its totient is φ = 1101211222128.

The previous prime is 1101211222099. The next prime is 1101211222159. The reversal of 1101211222129 is 9212221121011.

It is a balanced prime because it is at equal distance from previous prime (1101211222099) and next prime (1101211222159).

It can be written as a sum of positive squares in only one way, i.e., 1065054960225 + 36156261904 = 1032015^2 + 190148^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101211222129 - 2¹⁵ = 1101211189361 is a prime.

It is not a weakly prime, because it can be changed into another prime (1101211222159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550605611064 + 550605611065.

It is an arithmetic number, because the mean of its divisors is an integer number (550605611065).

Almost surely, 2^{1101211222129} is an apocalyptic number.

It is an amenable number.

1101211222129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101211222129 is an equidigital number, since it uses as much as digits as its factorization.

1101211222129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 1101211222129 in words is "one trillion, one hundred one billion, two hundred eleven million, two hundred twenty-two thousand, one hundred twenty-nine".