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22130220000 = 25354752691
BaseRepresentation
bin10100100111000100…
…000101101111100000
32010010021220122201210
4110213010011233200
5330310314020000
614055543230120
71412256523560
oct244704055740
963107818653
1022130220000
119426a28919
124357448340
132118b16945
1410dd19ada0
15897ca2350
hex527105be0

22130220000 has 240 divisors, whose sum is σ = 82963343232. Its totient is φ = 5058240000.

The previous prime is 22130219963. The next prime is 22130220019. The reversal of 22130220000 is 2203122.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 393655 + ... + 446345.

Almost surely, 222130220000 is an apocalyptic number.

22130220000 is a gapful number since it is divisible by the number (20) 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 22130220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41481671616).

22130220000 is an abundant number, since it is smaller than the sum of its proper divisors (60833123232).

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

22130220000 is an equidigital number, since it uses as much as digits as its factorization.

22130220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52731 (or 52708 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 22130220000 its reverse (2203122), we get a palindrome (22132423122).

The spelling of 22130220000 in words is "twenty-two billion, one hundred thirty million, two hundred twenty thousand".