122220283657 has 2 divisors, whose sum is σ = 122220283658. Its totient is φ = 122220283656.

The previous prime is 122220283621. The next prime is 122220283711. The reversal of 122220283657 is 756382022221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70197972601 + 52022311056 = 264949^2 + 228084^2 .

It is a cyclic number.

It is not a de Polignac number, because 122220283657 - 2⁷ = 122220283529 is a prime.

It is not a weakly prime, because it can be changed into another prime (122220233657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110141828 + 61110141829.

It is an arithmetic number, because the mean of its divisors is an integer number (61110141829).

Almost surely, 2^122220283657 is an apocalyptic number.

It is an amenable number.

122220283657 is a deficient number, since it is larger than the sum of its proper divisors (1).

122220283657 is an equidigital number, since it uses as much as digits as its factorization.

122220283657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 122220283657 in words is "one hundred twenty-two billion, two hundred twenty million, two hundred eighty-three thousand, six hundred fifty-seven".