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122442010121 = 9771093114661
BaseRepresentation
bin111001000001000011…
…1001100111000001001
3102201001012020120121202
41302002013030320021
54001230123310441
6132125445113545
711563140625304
oct1620207147011
9381035216552
10122442010121
1147a22360502
121b8916b88b5
13b7140c1782
145cd77bdb3b
1532b957919b
hex1c821cce09

122442010121 has 8 divisors (see below), whose sum is σ = 122680542984. Its totient is φ = 122203710720.

The previous prime is 122442010081. The next prime is 122442010133. The reversal of 122442010121 is 121010244221.

It can be written as a sum of positive squares in 4 ways, for example, as 79783651600 + 42658358521 = 282460^2 + 206539^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 122442010121 - 210 = 122442009097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 122442010093 and 122442010102.

It is not an unprimeable number, because it can be changed into a prime (122442010151) 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, 1010531 + ... + 1125191.

It is an arithmetic number, because the mean of its divisors is an integer number (15335067873).

Almost surely, 2122442010121 is an apocalyptic number.

It is an amenable number.

122442010121 is a deficient number, since it is larger than the sum of its proper divisors (238532863).

122442010121 is a wasteful number, since it uses less digits than its factorization.

122442010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116731.

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

Adding to 122442010121 its reverse (121010244221), we get a palindrome (243452254342).

The spelling of 122442010121 in words is "one hundred twenty-two billion, four hundred forty-two million, ten thousand, one hundred twenty-one".

Divisors: 1 977 1093 114661 1067861 112023797 125324473 122442010121