1220112201097 has 2 divisors, whose sum is σ = 1220112201098. Its totient is φ = 1220112201096.

The previous prime is 1220112201079. The next prime is 1220112201127. The reversal of 1220112201097 is 7901022110221.

Together with previous prime (1220112201079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 897242778441 + 322869422656 = 947229^2 + 568216^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220112201097 - 2¹¹ = 1220112199049 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220112201037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610056100548 + 610056100549.

It is an arithmetic number, because the mean of its divisors is an integer number (610056100549).

Almost surely, 2^{1220112201097} is an apocalyptic number.

It is an amenable number.

1220112201097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220112201097 is an equidigital number, since it uses as much as digits as its factorization.

1220112201097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 1220112201097 in words is "one trillion, two hundred twenty billion, one hundred twelve million, two hundred one thousand, ninety-seven".