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101212112012201 = 5571758110335553
BaseRepresentation
bin10111000000110101000111…
…111110111100001110101001
3111021100210011002220121110122
4113000311013332330032221
5101231224401133342301
6555132111413453025
730214222326224231
oct2700650776741651
9437323132817418
10101212112012201
112a2818a7700303
12b427703641175
134462351b53678
141adc999b94cc1
15ba7b5c9a481b
hex5c0d47fbc3a9

101212112012201 has 8 divisors (see below), whose sum is σ = 101399598418824. Its totient is φ = 101024646312960.

The previous prime is 101212112012183. The next prime is 101212112012213. The reversal of 101212112012201 is 102210211212101.

It can be written as a sum of positive squares in 4 ways, for example, as 8574355240000 + 92637756772201 = 2928200^2 + 9624851^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-101212112012201 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 101212112012201.

It is not an unprimeable number, because it can be changed into a prime (101212112014201) 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, 4624841 + ... + 14960393.

It is an arithmetic number, because the mean of its divisors is an integer number (12674949802353).

Almost surely, 2101212112012201 is an apocalyptic number.

It is an amenable number.

101212112012201 is a deficient number, since it is larger than the sum of its proper divisors (187486406623).

101212112012201 is a wasteful number, since it uses less digits than its factorization.

101212112012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10353691.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 101212112012201 its reverse (102210211212101), we get a palindrome (203422323224302).

The spelling of 101212112012201 in words is "one hundred one trillion, two hundred twelve billion, one hundred twelve million, twelve thousand, two hundred one".

Divisors: 1 557 17581 9792617 10335553 5756903021 181709357293 101212112012201