122696221 has 2 divisors, whose sum is σ = 122696222. Its totient is φ = 122696220.

The previous prime is 122696207. The next prime is 122696227.

122696221 is nontrivially palindromic in base 10.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122544900 + 151321 = 11070^2 + 389^2 .

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122696221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122696227) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61348110 + 61348111.

It is an arithmetic number, because the mean of its divisors is an integer number (61348111).

Almost surely, 2^122696221 is an apocalyptic number.

It is an amenable number.

122696221 is a deficient number, since it is larger than the sum of its proper divisors (1).

122696221 is an equidigital number, since it uses as much as digits as its factorization.

122696221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

The square root of 122696221 is about 11076.8326248978. The cubic root of 122696221 is about 496.9092282949.

The spelling of 122696221 in words is "one hundred twenty-two million, six hundred ninety-six thousand, two hundred twenty-one".