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122404102211 = 196442321169
BaseRepresentation
bin111000111111111011…
…0100110000001000011
3102200221112220122202002
41301333312212001003
54001140422232321
6132122012414215
711562200462516
oct1617766460103
9380845818662
10122404102211
1147a02a19756
121b880a7736b
13b7092ab261
145cd2752d7d
1532b608c20b
hex1c7fda6043

122404102211 has 4 divisors (see below), whose sum is σ = 128846423400. Its totient is φ = 115961781024.

The previous prime is 122404102111. The next prime is 122404102243. The reversal of 122404102211 is 112201404221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112201404221 = 755914843419.

It is a cyclic number.

It is not a de Polignac number, because 122404102211 - 222 = 122399907907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122404102111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3221160566 + ... + 3221160603.

It is an arithmetic number, because the mean of its divisors is an integer number (32211605850).

Almost surely, 2122404102211 is an apocalyptic number.

122404102211 is a deficient number, since it is larger than the sum of its proper divisors (6442321189).

122404102211 is an equidigital number, since it uses as much as digits as its factorization.

122404102211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6442321188.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 122404102211 its reverse (112201404221), we get a palindrome (234605506432).

The spelling of 122404102211 in words is "one hundred twenty-two billion, four hundred four million, one hundred two thousand, two hundred eleven".

Divisors: 1 19 6442321169 122404102211