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122121110201 = 235309613487
BaseRepresentation
bin111000110111011111…
…1000100001010111001
3102200012211102011200112
41301232333010022321
54000101001011301
6132033543114105
711552163211106
oct1615677041271
9380184364615
10122121110201
1147878201662
121b802142935
13b692786a6c
145ca6d29aad
15329b2dc9bb
hex1c6efc42b9

122121110201 has 4 divisors (see below), whose sum is σ = 127430723712. Its totient is φ = 116811496692.

The previous prime is 122121110197. The next prime is 122121110219. The reversal of 122121110201 is 102011121221.

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 not a de Polignac number, because 122121110201 - 22 = 122121110197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122121119201) 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, 2654806721 + ... + 2654806766.

It is an arithmetic number, because the mean of its divisors is an integer number (31857680928).

Almost surely, 2122121110201 is an apocalyptic number.

It is an amenable number.

122121110201 is a deficient number, since it is larger than the sum of its proper divisors (5309613511).

122121110201 is an equidigital number, since it uses as much as digits as its factorization.

122121110201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5309613510.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122121110201 its reverse (102011121221), we get a palindrome (224132231422).

The spelling of 122121110201 in words is "one hundred twenty-two billion, one hundred twenty-one million, one hundred ten thousand, two hundred one".

Divisors: 1 23 5309613487 122121110201