122569309801 has 9 divisors (see below), whose sum is σ = 125646434103. Its totient is φ = 119565810480.

The previous prime is 122569309799. The next prime is 122569309921. The reversal of 122569309801 is 108903965221.

The square root of 122569309801 is 350099.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5906076201 + 116663233600 = 76851^2 + 341560^2 .

It is not a de Polignac number, because 122569309801 - 2¹ = 122569309799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122569309201) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 14349790 + ... + 14358328.

Almost surely, 2^122569309801 is an apocalyptic number.

122569309801 is the 350099-th square number.

122569309801 is the 175050-th centered octagonal number.

It is an amenable number.

122569309801 is a deficient number, since it is larger than the sum of its proper divisors (3077124302).

122569309801 is an frugal number, since it uses more digits than its factorization.

122569309801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17160 (or 8580 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 122569309801 in words is "one hundred twenty-two billion, five hundred sixty-nine million, three hundred nine thousand, eight hundred one".