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12100212002200 = 23527171059747977
BaseRepresentation
bin1011000000010100110011…
…0101101000110110011000
31120211202202120122021101111
42300011030311220312120
53041222213233032300
641422432145030104
72356132350664150
oct260051465506630
946752676567344
1012100212002200
113945742250333
121435128625334
1369a0780c95ca
142db920c67760
1515eb4aa859ba
hexb014cd68d98

12100212002200 has 192 divisors, whose sum is σ = 34047207714240. Its totient is φ = 3904156385280.

The previous prime is 12100212002171. The next prime is 12100212002201. The reversal of 12100212002200 is 220021200121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100212002201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 252184612 + ... + 252232588.

It is an arithmetic number, because the mean of its divisors is an integer number (177329206845).

Almost surely, 212100212002200 is an apocalyptic number.

12100212002200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12100212002200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17023603857120).

12100212002200 is an abundant number, since it is smaller than the sum of its proper divisors (21946995712040).

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

12100212002200 is a wasteful number, since it uses less digits than its factorization.

12100212002200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58614 (or 58605 counting only the distinct ones).

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

Adding to 12100212002200 its reverse (220021200121), we get a palindrome (12320233202321).

The spelling of 12100212002200 in words is "twelve trillion, one hundred billion, two hundred twelve million, two thousand, two hundred".