Search a number
-
+
122102110010101 = 1353837721155117
BaseRepresentation
bin11011110000110100011100…
…111001001011101011110101
3121000022211212222121211212111
4123300310130321023223311
5112001010110130310401
61111404533541451021
734501405053355534
oct3360643471135365
9530284788554774
10122102110010101
11359a62399a59a1
1211840259710a71
135319244684960
142221ab8cb431b
15e1b251c10e51
hex6f0d1ce4baf5

122102110010101 has 16 divisors (see below), whose sum is σ = 133991609424624. Its totient is φ = 110569837008384.

The previous prime is 122102110010093. The next prime is 122102110010107. The reversal of 122102110010101 is 101010011201221.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 41625529686225 + 80476580323876 = 6451785^2 + 8970874^2 .

It is not a de Polignac number, because 122102110010101 - 23 = 122102110010093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122102110010107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4805806 + ... + 16349311.

It is an arithmetic number, because the mean of its divisors is an integer number (8374475589039).

Almost surely, 2122102110010101 is an apocalyptic number.

It is an amenable number.

122102110010101 is a deficient number, since it is larger than the sum of its proper divisors (11889499414523).

122102110010101 is a wasteful number, since it uses less digits than its factorization.

122102110010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21163560.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 122102110010101 its reverse (101010011201221), we get a palindrome (223112121211322).

The spelling of 122102110010101 in words is "one hundred twenty-two trillion, one hundred two billion, one hundred ten million, ten thousand, one hundred one".

Divisors: 1 13 53 689 8377 108901 443981 5771753 21155117 275016521 1121221201 14575875613 177216415109 2303813396417 9392470000777 122102110010101