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122120436361 = 7111585979693
BaseRepresentation
bin111000110111011110…
…0011111101010001001
3102200012210010221100111
41301232330133222021
54000100312430421
6132033520434321
711552154403420
oct1615674375211
9380183127314
10122120436361
1147877891370
121b801a789a1
13b6925ac141
145ca6bd22b7
15329b207ee1
hex1c6ef1fa89

122120436361 has 8 divisors (see below), whose sum is σ = 152254050624. Its totient is φ = 95158781520.

The previous prime is 122120436349. The next prime is 122120436367. The reversal of 122120436361 is 163634021221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122120436361 - 29 = 122120435849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122120436367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 792989770 + ... + 792989923.

It is an arithmetic number, because the mean of its divisors is an integer number (19031756328).

Almost surely, 2122120436361 is an apocalyptic number.

122120436361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122120436361 is a deficient number, since it is larger than the sum of its proper divisors (30133614263).

122120436361 is a wasteful number, since it uses less digits than its factorization.

122120436361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585979711.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 122120436361 its reverse (163634021221), we get a palindrome (285754457582).

The spelling of 122120436361 in words is "one hundred twenty-two billion, one hundred twenty million, four hundred thirty-six thousand, three hundred sixty-one".

Divisors: 1 7 11 77 1585979693 11101857851 17445776623 122120436361