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121222132300 = 22521212221323
BaseRepresentation
bin111000011100101100…
…1101111001001001100
3102120220011211100211201
41300321121233021030
53441230331213200
6131404430555244
711520666060223
oct1607131571114
9376804740751
10121222132300
1147456808215
121b5b1068b24
13b57b45a689
145c1d797cba
153247413c6a
hex1c3966f24c

121222132300 has 18 divisors (see below), whose sum is σ = 263052027308. Its totient is φ = 48488852880.

The previous prime is 121222132261. The next prime is 121222132303. The reversal of 121222132300 is 3231222121.

It is not an unprimeable number, because it can be changed into a prime (121222132303) 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 5 ways as a sum of consecutive naturals, for example, 606110562 + ... + 606110761.

Almost surely, 2121222132300 is an apocalyptic number.

121222132300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121222132300 is an abundant number, since it is smaller than the sum of its proper divisors (141829895008).

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

121222132300 is a wasteful number, since it uses less digits than its factorization.

121222132300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212221337 (or 1212221330 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 121222132300 its reverse (3231222121), we get a palindrome (124453354421).

The spelling of 121222132300 in words is "one hundred twenty-one billion, two hundred twenty-two million, one hundred thirty-two thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1212221323 2424442646 4848885292 6061106615 12122213230 24244426460 30305533075 60611066150 121222132300