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122120403101 = 163749204927
BaseRepresentation
bin111000110111011110…
…0010111100010011101
3102200012210002020201122
41301232330113202131
54000100310344401
6132033520020325
711552154204434
oct1615674274235
9380183066648
10122120403101
1147877869384
121b801a616a5
13b692599c68
145ca6bc411b
15329b1ed21b
hex1c6ef1789d

122120403101 has 4 divisors (see below), whose sum is σ = 122869608192. Its totient is φ = 121371198012.

The previous prime is 122120403047. The next prime is 122120403109. The reversal of 122120403101 is 101304021221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122120403101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122120403101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122120403109) 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, 374602301 + ... + 374602626.

It is an arithmetic number, because the mean of its divisors is an integer number (30717402048).

Almost surely, 2122120403101 is an apocalyptic number.

It is an amenable number.

122120403101 is a deficient number, since it is larger than the sum of its proper divisors (749205091).

122120403101 is an equidigital number, since it uses as much as digits as its factorization.

122120403101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749205090.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 122120403101 its reverse (101304021221), we get a palindrome (223424424322).

The spelling of 122120403101 in words is "one hundred twenty-two billion, one hundred twenty million, four hundred three thousand, one hundred one".

Divisors: 1 163 749204927 122120403101