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122884601401 = 3505492
BaseRepresentation
bin111001001110001111…
…1100011011000111001
3102202012001001112201101
41302130133203120321
54003131424221101
6132241415251401
711610123610012
oct1623437433071
9382161045641
10122884601401
114812a176921
121b995979b61
13b7849c61c3
145d3a4b0009
1532e3352401
hex1c9c7e3639

122884601401 has 3 divisors (see below), whose sum is σ = 122884951951. Its totient is φ = 122884250852.

The previous prime is 122884601393. The next prime is 122884601407. The reversal of 122884601401 is 104106488221.

The square root of 122884601401 is 350549.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 104106488221 = 731426116277.

It can be written as a sum of positive squares in only one way, i.e., 370601001 + 122514000400 = 19251^2 + 350020^2 .

It is not a de Polignac number, because 122884601401 - 23 = 122884601393 is a prime.

It is a super-2 number, since 2×1228846014012 (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 (122884601407) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 175275 + ... + 525823.

Almost surely, 2122884601401 is an apocalyptic number.

122884601401 is the 350549-th square number.

122884601401 is the 175275-th centered octagonal number.

It is an amenable number.

122884601401 is a deficient number, since it is larger than the sum of its proper divisors (350550).

122884601401 is an frugal number, since it uses more digits than its factorization.

122884601401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701098 (or 350549 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The spelling of 122884601401 in words is "one hundred twenty-two billion, eight hundred eighty-four million, six hundred one thousand, four hundred one".

Divisors: 1 350549 122884601401