1202121101089 has 2 divisors, whose sum is σ = 1202121101090. Its totient is φ = 1202121101088.

The previous prime is 1202121101003. The next prime is 1202121101107. The reversal of 1202121101089 is 9801011212021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1117333561600 + 84787539489 = 1057040^2 + 291183^2 .

It is an emirp because it is prime and its reverse (9801011212021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1202121101089 - 2⁹ = 1202121100577 is a prime.

It is not a weakly prime, because it can be changed into another prime (1202121101789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601060550544 + 601060550545.

It is an arithmetic number, because the mean of its divisors is an integer number (601060550545).

Almost surely, 2^{1202121101089} is an apocalyptic number.

It is an amenable number.

1202121101089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202121101089 is an equidigital number, since it uses as much as digits as its factorization.

1202121101089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 28.

The spelling of 1202121101089 in words is "one trillion, two hundred two billion, one hundred twenty-one million, one hundred one thousand, eighty-nine".