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12202102002100 = 2252122021020021
BaseRepresentation
bin1011000110010000010111…
…1101001001000110110100
31121012111202110122120002111
42301210011331021012310
53044404401103031400
641541322425220404
72366400314462353
oct261440575110664
947174673576074
1012202102002100
11398497852131a
121450a23331704
136a686534ac8a
14302828d0b99a
15162610ba53ba
hexb1905f491b4

12202102002100 has 18 divisors (see below), whose sum is σ = 26478561344774. Its totient is φ = 4880840800800.

The previous prime is 12202102002091. The next prime is 12202102002157. The reversal of 12202102002100 is 120020120221.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 195627520804 + 12006474481296 = 442298^2 + 3465036^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61010509911 + ... + 61010510110.

Almost surely, 212202102002100 is an apocalyptic number.

12202102002100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12202102002100 is an abundant number, since it is smaller than the sum of its proper divisors (14276459342674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12202102002100 is a wasteful number, since it uses less digits than its factorization.

12202102002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122021020035 (or 122021020028 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12202102002100 its reverse (120020120221), we get a palindrome (12322122122321).

The spelling of 12202102002100 in words is "twelve trillion, two hundred two billion, one hundred two million, two thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 122021020021 244042040042 488084080084 610105100105 1220210200210 2440420400420 3050525500525 6101051001050 12202102002100