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2212212130000 = 2454221221213
BaseRepresentation
bin100000001100010010000…
…111100100000011010000
321211111002212102000110121
4200030102013210003100
5242221102301130000
64412135355240024
7315553451563435
oct40142207440320
97744085360417
102212212130000
11783215091004
122b88a9449014
131307c295b572
147910080bb8c
153c828625b1a
hex203121e40d0

2212212130000 has 50 divisors (see below), whose sum is σ = 5355986812154. Its totient is φ = 884884848000.

The previous prime is 2212212129979. The next prime is 2212212130027. The reversal of 2212212130000 is 312122122.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 349947966096 + 1862264163904 = 591564^2 + 1364648^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 110600607 + ... + 110620606.

Almost surely, 22212212130000 is an apocalyptic number.

2212212130000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212212130000 is an abundant number, since it is smaller than the sum of its proper divisors (3143774682154).

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

2212212130000 is an equidigital number, since it uses as much as digits as its factorization.

2212212130000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221221241 (or 221221220 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2212212130000 its reverse (312122122), we get a palindrome (2212524252122).

The spelling of 2212212130000 in words is "two trillion, two hundred twelve billion, two hundred twelve million, one hundred thirty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 625 1000 1250 2000 2500 5000 10000 221221213 442442426 884884852 1106106065 1769769704 2212212130 3539539408 4424424260 5530530325 8848848520 11061060650 17697697040 22122121300 27652651625 44244242600 55305303250 88488485200 110610606500 138263258125 221221213000 276526516250 442442426000 553053032500 1106106065000 2212212130000