111011221100957 has 2 divisors, whose sum is σ = 111011221100958. Its totient is φ = 111011221100956.

The previous prime is 111011221100953. The next prime is 111011221101059. The reversal of 111011221100957 is 759001122110111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110911776109156 + 99444991801 = 10531466^2 + 315349^2 .

It is a cyclic number.

It is not a de Polignac number, because 111011221100957 - 2² = 111011221100953 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111011221100953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505610550478 + 55505610550479.

It is an arithmetic number, because the mean of its divisors is an integer number (55505610550479).

Almost surely, 2^{111011221100957} is an apocalyptic number.

It is an amenable number.

111011221100957 is a deficient number, since it is larger than the sum of its proper divisors (1).

111011221100957 is an equidigital number, since it uses as much as digits as its factorization.

111011221100957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 32.

The spelling of 111011221100957 in words is "one hundred eleven trillion, eleven billion, two hundred twenty-one million, one hundred thousand, nine hundred fifty-seven".