111021211210097 has 2 divisors, whose sum is σ = 111021211210098. Its totient is φ = 111021211210096.

The previous prime is 111021211210087. The next prime is 111021211210121. The reversal of 111021211210097 is 790012112120111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96962640935521 + 14058570274576 = 9846961^2 + 3749476^2 .

It is a cyclic number.

It is not a de Polignac number, because 111021211210097 - 2¹⁶ = 111021211144561 is a prime.

It is not a weakly prime, because it can be changed into another prime (111021211210087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55510605605048 + 55510605605049.

It is an arithmetic number, because the mean of its divisors is an integer number (55510605605049).

Almost surely, 2^{111021211210097} is an apocalyptic number.

It is an amenable number.

111021211210097 is a deficient number, since it is larger than the sum of its proper divisors (1).

111021211210097 is an equidigital number, since it uses as much as digits as its factorization.

111021211210097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 29.

The spelling of 111021211210097 in words is "one hundred eleven trillion, twenty-one billion, two hundred eleven million, two hundred ten thousand, ninety-seven".