122709389401 has 9 divisors (see below), whose sum is σ = 123591039103. Its totient is φ = 121833992200.

The previous prime is 122709389377. The next prime is 122709389441. The reversal of 122709389401 is 104983907221.

It is a happy number.

The square root of 122709389401 is 350299.

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., 14376249801 + 108333139600 = 119901^2 + 329140^2 .

It is not a de Polignac number, because 122709389401 - 2⁹ = 122709388889 is a prime.

It is a super-2 number, since 2×122709389401² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122709389441) 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, 52193376 + ... + 52195726.

Almost surely, 2^122709389401 is an apocalyptic number.

122709389401 is the 350299-th square number.

122709389401 is the 175150-th centered octagonal number.

It is an amenable number.

122709389401 is a deficient number, since it is larger than the sum of its proper divisors (881649702).

122709389401 is an frugal number, since it uses more digits than its factorization.

122709389401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5000 (or 2500 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 122709389401 in words is "one hundred twenty-two billion, seven hundred nine million, three hundred eighty-nine thousand, four hundred one".