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22121030300 = 2252221210303
BaseRepresentation
bin10100100110100001…
…000010001010011100
32010002122121202211112
4110212201002022130
5330300440432200
614055014241152
71412115440465
oct244641021234
963078552745
1022121030300
119421821526
1243543561b8
132116c49b55
1410dbc87d6c
15897089535
hex52684229c

22121030300 has 18 divisors (see below), whose sum is σ = 48002635968. Its totient is φ = 8848412080.

The previous prime is 22121030287. The next prime is 22121030369. The reversal of 22121030300 is 303012122.

It is a happy number.

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 5 ways as a sum of consecutive naturals, for example, 110605052 + ... + 110605251.

Almost surely, 222121030300 is an apocalyptic number.

22121030300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22121030300 is an abundant number, since it is smaller than the sum of its proper divisors (25881605668).

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

22121030300 is a wasteful number, since it uses less digits than its factorization.

22121030300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221210317 (or 221210310 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 22121030300 its reverse (303012122), we get a palindrome (22424042422).

The spelling of 22121030300 in words is "twenty-two billion, one hundred twenty-one million, thirty thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 221210303 442420606 884841212 1106051515 2212103030 4424206060 5530257575 11060515150 22121030300