122240197 has 2 divisors, whose sum is σ = 122240198. Its totient is φ = 122240196.

The previous prime is 122240189. The next prime is 122240201. The reversal of 122240197 is 791042221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72692676 + 49547521 = 8526^2 + 7039^2 .

It is a cyclic number.

It is not a de Polignac number, because 122240197 - 2³ = 122240189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122240137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61120098 + 61120099.

It is an arithmetic number, because the mean of its divisors is an integer number (61120099).

Almost surely, 2^122240197 is an apocalyptic number.

It is an amenable number.

122240197 is a deficient number, since it is larger than the sum of its proper divisors (1).

122240197 is an equidigital number, since it uses as much as digits as its factorization.

122240197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 122240197 is about 11056.2288778769. The cubic root of 122240197 is about 496.2928445942.

The spelling of 122240197 in words is "one hundred twenty-two million, two hundred forty thousand, one hundred ninety-seven".