2201111221097 has 2 divisors, whose sum is σ = 2201111221098. Its totient is φ = 2201111221096.

The previous prime is 2201111221069. The next prime is 2201111221241. The reversal of 2201111221097 is 7901221111022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1584617721856 + 616493499241 = 1258816^2 + 785171^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201111221097 - 2²⁴ = 2201094443881 is a prime.

It is not a weakly prime, because it can be changed into another prime (2201111221297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100555610548 + 1100555610549.

It is an arithmetic number, because the mean of its divisors is an integer number (1100555610549).

Almost surely, 2^{2201111221097} is an apocalyptic number.

It is an amenable number.

2201111221097 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201111221097 is an equidigital number, since it uses as much as digits as its factorization.

2201111221097 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 29.

The spelling of 2201111221097 in words is "two trillion, two hundred one billion, one hundred eleven million, two hundred twenty-one thousand, ninety-seven".