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102201001100 = 225211101919901
BaseRepresentation
bin101111100101110100…
…1111000010010001100
3100202210120012210010222
41133023221320102030
53133301424013400
6114541150050512
710245431114222
oct1371351702214
9322716183128
10102201001100
113a385889880
1217982aa9a38
139839801963
144d374bcb12
1529d25a3185
hex17cba7848c

102201001100 has 72 divisors (see below), whose sum is σ = 244333330416. Its totient is φ = 36796000000.

The previous prime is 102201001099. The next prime is 102201001109. The reversal of 102201001100 is 1100102201.

It is not an unprimeable number, because it can be changed into a prime (102201001109) 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 23 ways as a sum of consecutive naturals, for example, 348851 + ... + 571050.

It is an arithmetic number, because the mean of its divisors is an integer number (3393518478).

Almost surely, 2102201001100 is an apocalyptic number.

102201001100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102201001100 is an abundant number, since it is smaller than the sum of its proper divisors (142132329316).

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

102201001100 is a wasteful number, since it uses less digits than its factorization.

102201001100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920027 (or 920020 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 102201001100 its reverse (1100102201), we get a palindrome (103301103301).

The spelling of 102201001100 in words is "one hundred two billion, two hundred one million, one thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 101 110 202 220 275 404 505 550 1010 1100 1111 2020 2222 2525 4444 5050 5555 10100 11110 22220 27775 55550 111100 919901 1839802 3679604 4599505 9199010 10118911 18398020 20237822 22997525 40475644 45995050 50594555 91990100 92910001 101189110 185820002 202378220 252972775 371640004 464550005 505945550 929100010 1011891100 1022010011 1858200020 2044020022 2322750025 4088040044 4645500050 5110050055 9291000100 10220100110 20440200220 25550250275 51100500550 102201001100