1200122022089 has 2 divisors, whose sum is σ = 1200122022090. Its totient is φ = 1200122022088.

The previous prime is 1200122022059. The next prime is 1200122022131. The reversal of 1200122022089 is 9802202210021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1036649785600 + 163472236489 = 1018160^2 + 404317^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200122022089 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200122022019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600061011044 + 600061011045.

It is an arithmetic number, because the mean of its divisors is an integer number (600061011045).

Almost surely, 2^{1200122022089} is an apocalyptic number.

It is an amenable number.

1200122022089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200122022089 is an equidigital number, since it uses as much as digits as its factorization.

1200122022089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 1200122022089 in words is "one trillion, two hundred billion, one hundred twenty-two million, twenty-two thousand, eighty-nine".