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122201120201 = 769158909129
BaseRepresentation
bin111000111001111000…
…0010001110111001001
3102200102101222002202212
41301303300101313021
54000231441321301
6132045522034505
711554154245316
oct1616360216711
9380371862685
10122201120201
114790938a326
121b824aa8a35
13b6a621b864
145cb37d5d0d
1532a33444bb
hex1c73c11dc9

122201120201 has 4 divisors (see below), whose sum is σ = 122360030100. Its totient is φ = 122042210304.

The previous prime is 122201120183. The next prime is 122201120203. The reversal of 122201120201 is 102021102221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102021102221 = 531924926457.

It can be written as a sum of positive squares in 2 ways, for example, as 98157516601 + 24043603600 = 313301^2 + 155060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122201120201 is a prime.

It is a super-2 number, since 2×1222011202012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122201120203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79453796 + ... + 79455333.

It is an arithmetic number, because the mean of its divisors is an integer number (30590007525).

Almost surely, 2122201120201 is an apocalyptic number.

It is an amenable number.

122201120201 is a deficient number, since it is larger than the sum of its proper divisors (158909899).

122201120201 is an equidigital number, since it uses as much as digits as its factorization.

122201120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158909898.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122201120201 its reverse (102021102221), we get a palindrome (224222222422).

The spelling of 122201120201 in words is "one hundred twenty-two billion, two hundred one million, one hundred twenty thousand, two hundred one".

Divisors: 1 769 158909129 122201120201