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102022111001 = 267738110613
BaseRepresentation
bin101111100000011111…
…1011101111100011001
3100202100002121020001202
41133000333131330121
53132420130023001
6114511315523545
710241126430566
oct1370077357431
9322302536052
10102022111001
113a2a3905018
1217932bb95b5
13980b729025
144d1b83386d
1529c1a1896b
hex17c0fddf19

102022111001 has 4 divisors (see below), whose sum is σ = 102060224292. Its totient is φ = 101983997712.

The previous prime is 102022110989. The next prime is 102022111013. The reversal of 102022111001 is 100111220201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100111220201 = 122898146409.

It is an interprime number because it is at equal distance from previous prime (102022110989) and next prime (102022111013).

It can be written as a sum of positive squares in 2 ways, for example, as 19337683600 + 82684427401 = 139060^2 + 287549^2 .

It is a cyclic number.

It is not a de Polignac number, because 102022111001 - 26 = 102022110937 is a prime.

It is a super-2 number, since 2×1020221110012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102022111031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19052630 + ... + 19057983.

It is an arithmetic number, because the mean of its divisors is an integer number (25515056073).

Almost surely, 2102022111001 is an apocalyptic number.

It is an amenable number.

102022111001 is a deficient number, since it is larger than the sum of its proper divisors (38113291).

102022111001 is an equidigital number, since it uses as much as digits as its factorization.

102022111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38113290.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102022111001 its reverse (100111220201), we get a palindrome (202133331202).

The spelling of 102022111001 in words is "one hundred two billion, twenty-two million, one hundred eleven thousand, one".

Divisors: 1 2677 38110613 102022111001