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102122122201 = 112843984481
BaseRepresentation
bin101111100011011110…
…0111110101111011001
3100202121001210022122021
41133012330332233121
53133121230402301
6114525251254441
710243452500461
oct1370674765731
9322531708567
10102122122201
113a345303a00
12179605aa421
139826374958
144d2ac28ba1
1529ca6c18a1
hex17c6f3ebd9

102122122201 has 6 divisors (see below), whose sum is σ = 112249936106. Its totient is φ = 92838292800.

The previous prime is 102122122183. The next prime is 102122122259. The reversal of 102122122201 is 102221221201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 93412753225 + 8709368976 = 305635^2 + 93324^2 .

It is not a de Polignac number, because 102122122201 - 211 = 102122120153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102122122261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 421992120 + ... + 421992361.

Almost surely, 2102122122201 is an apocalyptic number.

102122122201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102122122201 is a deficient number, since it is larger than the sum of its proper divisors (10127813905).

102122122201 is an equidigital number, since it uses as much as digits as its factorization.

102122122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843984503 (or 843984492 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102122122201 its reverse (102221221201), we get a palindrome (204343343402).

The spelling of 102122122201 in words is "one hundred two billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred one".

Divisors: 1 11 121 843984481 9283829291 102122122201