201122021100097 has 2 divisors, whose sum is σ = 201122021100098. Its totient is φ = 201122021100096.

The previous prime is 201122021100089. The next prime is 201122021100113. The reversal of 201122021100097 is 790001120221102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132151670284176 + 68970350815921 = 11495724^2 + 8304839^2 .

It is a cyclic number.

It is not a de Polignac number, because 201122021100097 - 2³ = 201122021100089 is a prime.

It is not a weakly prime, because it can be changed into another prime (201122021100067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100561010550048 + 100561010550049.

It is an arithmetic number, because the mean of its divisors is an integer number (100561010550049).

Almost surely, 2^{201122021100097} is an apocalyptic number.

It is an amenable number.

201122021100097 is a deficient number, since it is larger than the sum of its proper divisors (1).

201122021100097 is an equidigital number, since it uses as much as digits as its factorization.

201122021100097 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.

Adding to 201122021100097 its reverse (790001120221102), we get a palindrome (991123141321199).

The spelling of 201122021100097 in words is "two hundred one trillion, one hundred twenty-two billion, twenty-one million, one hundred thousand, ninety-seven".