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20102212100101 = 15122393688859
BaseRepresentation
bin1001001001000011010010…
…01101100010000000000101
32122011202022201120011202211
410210201221031202000011
510113323312244200401
6110430455002103421
74143223361363545
oct444415115420005
978152281504684
1020102212100101
11645033373773a
122307b3a1aab71
13b2a8271a0541
144d6d48dc9325
1524cd883cc951
hex124869362005

20102212100101 has 12 divisors (see below), whose sum is σ = 20320896859200. Its totient is φ = 19885526820600.

The previous prime is 20102212100063. The next prime is 20102212100171. The reversal of 20102212100101 is 10100121220102.

It is not a de Polignac number, because 20102212100101 - 231 = 20100064616453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102212100171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3605010 + ... + 7293868.

It is an arithmetic number, because the mean of its divisors is an integer number (1693408071600).

Almost surely, 220102212100101 is an apocalyptic number.

It is an amenable number.

20102212100101 is a deficient number, since it is larger than the sum of its proper divisors (218684759099).

20102212100101 is an equidigital number, since it uses as much as digits as its factorization.

20102212100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3689400 (or 3689249 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20102212100101 its reverse (10100121220102), we get a palindrome (30202333320203).

The spelling of 20102212100101 in words is "twenty trillion, one hundred two billion, two hundred twelve million, one hundred thousand, one hundred one".

Divisors: 1 151 239 22801 36089 3688859 5449439 557017709 881637301 84109674059 133127232451 20102212100101