1122201210961 has 2 divisors, whose sum is σ = 1122201210962. Its totient is φ = 1122201210960.

The previous prime is 1122201210959. The next prime is 1122201211037. The reversal of 1122201210961 is 1690121022211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1050920220736 + 71280990225 = 1025144^2 + 266985^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122201210961 - 2¹ = 1122201210959 is a prime.

Together with 1122201210959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1122201210941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561100605480 + 561100605481.

It is an arithmetic number, because the mean of its divisors is an integer number (561100605481).

Almost surely, 2^{1122201210961} is an apocalyptic number.

It is an amenable number.

1122201210961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122201210961 is an equidigital number, since it uses as much as digits as its factorization.

1122201210961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 28.

The spelling of 1122201210961 in words is "one trillion, one hundred twenty-two billion, two hundred one million, two hundred ten thousand, nine hundred sixty-one".