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102200102221 = 731215192523
BaseRepresentation
bin101111100101110011…
…0011100110101001101
3100202210111112010010011
41133023212130311031
53133301211232341
6114541114513221
710245420351460
oct1371346346515
9322714463104
10102200102221
113a3853254a8
1217982735811
139839578789
144d373272d7
1529d2476b81
hex17cb99cd4d

102200102221 has 12 divisors (see below), whose sum is σ = 120689410656. Its totient is φ = 84774272760.

The previous prime is 102200102177. The next prime is 102200102233. The reversal of 102200102221 is 122201002201.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-102200102221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102200112221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7589535 + ... + 7602988.

It is an arithmetic number, because the mean of its divisors is an integer number (10057450888).

Almost surely, 2102200102221 is an apocalyptic number.

It is an amenable number.

102200102221 is a deficient number, since it is larger than the sum of its proper divisors (18489308435).

102200102221 is an equidigital number, since it uses as much as digits as its factorization.

102200102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15192592 (or 15192561 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102200102221 its reverse (122201002201), we get a palindrome (224401104422).

The spelling of 102200102221 in words is "one hundred two billion, two hundred million, one hundred two thousand, two hundred twenty-one".

Divisors: 1 7 31 217 961 6727 15192523 106347661 470968213 3296777491 14600014603 102200102221