1226101201889 has 2 divisors, whose sum is σ = 1226101201890. Its totient is φ = 1226101201888.

The previous prime is 1226101201841. The next prime is 1226101201937. The reversal of 1226101201889 is 9881021016221.

It is a balanced prime because it is at equal distance from previous prime (1226101201841) and next prime (1226101201937).

It can be written as a sum of positive squares in only one way, i.e., 916965201889 + 309136000000 = 957583^2 + 556000^2 .

It is a cyclic number.

It is not a de Polignac number, because 1226101201889 - 2¹⁶ = 1226101136353 is a prime.

It is not a weakly prime, because it can be changed into another prime (1226101200889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613050600944 + 613050600945.

It is an arithmetic number, because the mean of its divisors is an integer number (613050600945).

Almost surely, 2^{1226101201889} is an apocalyptic number.

It is an amenable number.

1226101201889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226101201889 is an equidigital number, since it uses as much as digits as its factorization.

1226101201889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 41.

The spelling of 1226101201889 in words is "one trillion, two hundred twenty-six billion, one hundred one million, two hundred one thousand, eight hundred eighty-nine".