1122221221489 has 2 divisors, whose sum is σ = 1122221221490. Its totient is φ = 1122221221488.

The previous prime is 1122221221481. The next prime is 1122221221501. The reversal of 1122221221489 is 9841221222211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1039567846464 + 82653375025 = 1019592^2 + 287495^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122221221489 - 2³ = 1122221221481 is a prime.

It is not a weakly prime, because it can be changed into another prime (1122221221481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561110610744 + 561110610745.

It is an arithmetic number, because the mean of its divisors is an integer number (561110610745).

Almost surely, 2^{1122221221489} is an apocalyptic number.

It is an amenable number.

1122221221489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122221221489 is an equidigital number, since it uses as much as digits as its factorization.

1122221221489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 37.

The spelling of 1122221221489 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-one million, two hundred twenty-one thousand, four hundred eighty-nine".