1011222120089 has 2 divisors, whose sum is σ = 1011222120090. Its totient is φ = 1011222120088.

The previous prime is 1011222119993. The next prime is 1011222120107. The reversal of 1011222120089 is 9800212221101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 596238787225 + 414983332864 = 772165^2 + 644192^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011222120089 - 2⁸ = 1011222119833 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011222120589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505611060044 + 505611060045.

It is an arithmetic number, because the mean of its divisors is an integer number (505611060045).

Almost surely, 2^{1011222120089} is an apocalyptic number.

It is an amenable number.

1011222120089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011222120089 is an equidigital number, since it uses as much as digits as its factorization.

1011222120089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 29.

It can be divided in two parts, 1011222 and 120089, that added together give a palindrome (1131311).

The spelling of 1011222120089 in words is "one trillion, eleven billion, two hundred twenty-two million, one hundred twenty thousand, eighty-nine".